ArmPlatformPkg/ArmRealViewEbPkg/Library/ArmRealViewEbLibRTSM/ArmRealViewEbMem.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2011, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15 #include <Library/ArmPlatformLib.h>
  16 #include <Library/DebugLib.h>
  17 #include <Library/PcdLib.h>
  18 #include <Library/MemoryAllocationLib.h>
  19 #include <Library/IoLib.h>
  20
  21 // DDR attributes
  22 #define DDR_ATTRIBUTES_CACHED           ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
  23 #define DDR_ATTRIBUTES_UNCACHED         ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
  24 #define DDR_ATTRIBUTES_SECURE_CACHED    ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_BACK
  25 #define DDR_ATTRIBUTES_SECURE_UNCACHED  ARM_MEMORY_REGION_ATTRIBUTE_SECURE_UNCACHED_UNBUFFERED
  26
  27 /**
  28   Return the information about the memory region in permanent memory used by PEI
  29
  30   One of the PEI Module must install the permament memory used by PEI. This function returns the
  31   information about this region for your platform to this PEIM module.
  32
  33   @param[out]   PeiMemoryBase       Base of the memory region used by PEI core and modules
  34   @param[out]   PeiMemorySize       Size of the memory region used by PEI core and modules
  35
  36 **/
  37 VOID ArmPlatformGetPeiMemory (
  38     OUT UINTN*                                   PeiMemoryBase,
  39     OUT UINTN*                                   PeiMemorySize
  40     ) {
  41     ASSERT((PeiMemoryBase != NULL) && (PeiMemorySize != NULL));
  42
  43     *PeiMemoryBase = ARM_EB_DRAM_BASE + ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
  44     *PeiMemorySize = ARM_EB_EFI_MEMORY_REGION_SZ;
  45 }
  46
  47 /**
  48   Return the Virtual Memory Map of your platform
  49
  50   This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
  51
  52   @param[out]   VirtualMemoryMap    Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
  53                                     Virtual Memory mapping. This array must be ended by a zero-filled
  54                                     entry
  55
  56 **/
  57 VOID ArmPlatformGetVirtualMemoryMap(ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap) {
  58     UINT32                        CacheAttributes;
  59     BOOLEAN                       bTrustzoneSupport = FALSE;
  60     UINTN                         Index = 0;
  61     ARM_MEMORY_REGION_DESCRIPTOR  *VirtualMemoryTable;
  62
  63     ASSERT(VirtualMemoryMap != NULL);
  64
  65     VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * 9);
  66     if (VirtualMemoryTable == NULL) {
  67         return;
  68     }
  69
  70     if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
  71         CacheAttributes = (bTrustzoneSupport ? DDR_ATTRIBUTES_CACHED : DDR_ATTRIBUTES_SECURE_CACHED);
  72     } else {
  73         CacheAttributes = (bTrustzoneSupport ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
  74     }
  75
  76     // ReMap (Either NOR Flash or DRAM)
  77     VirtualMemoryTable[Index].PhysicalBase = ARM_EB_REMAP_BASE;
  78     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_REMAP_BASE;
  79     VirtualMemoryTable[Index].Length       = ARM_EB_REMAP_SZ;
  80     VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
  81
  82     // DDR
  83     VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_DRAM_BASE;
  84     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_DRAM_BASE;
  85     VirtualMemoryTable[Index].Length       = ARM_EB_DRAM_SZ;
  86     VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
  87
  88     // SMC CS7
  89     VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_SMB_MB_ON_CHIP_PERIPH_BASE;
  90     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_SMB_MB_ON_CHIP_PERIPH_BASE;
  91     VirtualMemoryTable[Index].Length       = ARM_EB_SMB_MB_ON_CHIP_PERIPH_SZ;
  92     VirtualMemoryTable[Index].Attributes   = (bTrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
  93
  94     // SMB CS0-CS1 - NOR Flash 1 & 2
  95     VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_SMB_NOR_BASE;
  96     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_SMB_NOR_BASE;
  97     VirtualMemoryTable[Index].Length       = ARM_EB_SMB_NOR_SZ + ARM_EB_SMB_DOC_SZ;
  98     VirtualMemoryTable[Index].Attributes   = (bTrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
  99
 100     // SMB CS2 - SRAM
 101     VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_SMB_SRAM_BASE;
 102     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_SMB_SRAM_BASE;
 103     VirtualMemoryTable[Index].Length       = ARM_EB_SMB_SRAM_SZ;
 104     VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)CacheAttributes;
 105
 106     // SMB CS3-CS6 - Motherboard Peripherals
 107     VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_SMB_PERIPH_BASE;
 108     VirtualMemoryTable[Index].VirtualBase  = ARM_EB_SMB_PERIPH_BASE;
 109     VirtualMemoryTable[Index].Length       = ARM_EB_SMB_PERIPH_SZ;
 110     VirtualMemoryTable[Index].Attributes   = (bTrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
 111
 112     // If a Logic Tile is connected to The ARM Versatile Express Motherboard
 113     if (MmioRead32(ARM_EB_SYS_PROCID1_REG) != 0) {
 114         VirtualMemoryTable[++Index].PhysicalBase = ARM_EB_LOGIC_TILE_BASE;
 115         VirtualMemoryTable[Index].VirtualBase  = ARM_EB_LOGIC_TILE_BASE;
 116         VirtualMemoryTable[Index].Length       = ARM_EB_LOGIC_TILE_SZ;
 117         VirtualMemoryTable[Index].Attributes   = (bTrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
 118     }
 119
 120     // End of Table
 121     VirtualMemoryTable[++Index].PhysicalBase = 0;
 122     VirtualMemoryTable[Index].VirtualBase  = 0;
 123     VirtualMemoryTable[Index].Length       = 0;
 124     VirtualMemoryTable[Index].Attributes   = (ARM_MEMORY_REGION_ATTRIBUTES)0;
 125
 126     *VirtualMemoryMap = VirtualMemoryTable;
 127 }
 128
 129 /**
 130   Return the EFI Memory Map of your platform
 131
 132   This EFI Memory Map of the System Memory is used by MemoryInitPei module to create the Resource
 133   Descriptor HOBs used by DXE core.
 134
 135   @param[out]   EfiMemoryMap        Array of ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR describing an
 136                                     EFI Memory region. This array must be ended by a zero-filled entry
 137
 138 **/
 139 VOID ArmPlatformGetEfiMemoryMap (
 140     OUT ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR** EfiMemoryMap
 141 ) {
 142     EFI_RESOURCE_ATTRIBUTE_TYPE     Attributes;
 143     UINT64                          MemoryBase;
 144     UINTN                           Index = 0;
 145     ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR  *EfiMemoryTable;
 146
 147     ASSERT(EfiMemoryMap != NULL);
 148
 149     EfiMemoryTable = (ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(sizeof(ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR) * 6);
 150
 151     Attributes =
 152     (
 153       EFI_RESOURCE_ATTRIBUTE_PRESENT |
 154       EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 155       EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 156       EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 157       EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 158       EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
 159       EFI_RESOURCE_ATTRIBUTE_TESTED
 160     );
 161     MemoryBase = ARM_EB_DRAM_BASE;
 162
 163     // Memory Reserved for fixed address allocations (such as Exception Vector Table)
 164     EfiMemoryTable[Index].ResourceAttribute = Attributes;
 165     EfiMemoryTable[Index].PhysicalStart = MemoryBase;
 166     EfiMemoryTable[Index].NumberOfBytes = ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
 167
 168     MemoryBase += ARM_EB_EFI_FIX_ADDRESS_REGION_SZ;
 169
 170     // Memory declared to PEI as permanent memory for PEI and DXE
 171     EfiMemoryTable[++Index].ResourceAttribute = Attributes;
 172     EfiMemoryTable[Index].PhysicalStart = MemoryBase;
 173     EfiMemoryTable[Index].NumberOfBytes = ARM_EB_EFI_MEMORY_REGION_SZ;
 174
 175     MemoryBase += ARM_EB_EFI_MEMORY_REGION_SZ;
 176
 177     // We must reserve the memory used by the Firmware Volume copied in DRAM at 0x80000000
 178     if (FeaturePcdGet(PcdStandalone) == FALSE) {
 179         // Chunk between the EFI Memory region and the firmware
 180         EfiMemoryTable[++Index].ResourceAttribute = Attributes;
 181         EfiMemoryTable[Index].PhysicalStart = MemoryBase;
 182         EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdBaseAddress) - MemoryBase;
 183
 184         // Chunk reserved by the firmware in DRAM
 185         EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_PRESENT);
 186         EfiMemoryTable[Index].PhysicalStart = PcdGet32(PcdNormalFdBaseAddress);
 187         EfiMemoryTable[Index].NumberOfBytes = PcdGet32(PcdNormalFdSize);
 188
 189         MemoryBase = PcdGet32(PcdNormalFdBaseAddress) + PcdGet32(PcdNormalFdSize);
 190     }
 191
 192     // We allocate all the remain memory as untested system memory
 193     EfiMemoryTable[++Index].ResourceAttribute = Attributes & (~EFI_RESOURCE_ATTRIBUTE_TESTED);
 194     EfiMemoryTable[Index].PhysicalStart = MemoryBase;
 195     EfiMemoryTable[Index].NumberOfBytes = ARM_EB_DRAM_SZ - (MemoryBase-ARM_EB_DRAM_BASE);
 196
 197     EfiMemoryTable[++Index].ResourceAttribute = 0;
 198     EfiMemoryTable[Index].PhysicalStart = 0;
 199     EfiMemoryTable[Index].NumberOfBytes = 0;
 200
 201     *EfiMemoryMap = EfiMemoryTable;
 202 }