ArmPlatformPkg/Include/Library/ArmPlatformLib.h

   1 /** @file
   2 *
   3 *  Copyright (c) 2011-2013, 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 #ifndef _ARMPLATFORMLIB_H_
  16 #define _ARMPLATFORMLIB_H_
  17
  18 //
  19 // The package level header files this module uses
  20 //
  21 #include <PiPei.h>
  22 //
  23 // The protocols, PPI and GUID defintions for this module
  24 //
  25 #include <Ppi/MasterBootMode.h>
  26 #include <Ppi/BootInRecoveryMode.h>
  27
  28 #include <Library/ArmLib.h>
  29
  30 /**
  31   This structure is used to describe a region of the EFI memory map
  32
  33   Every EFI regions of the system memory described by their physical start address and their size
  34   can have different attributes. Some regions can be tested and other untested.
  35
  36 **/
  37 typedef struct {
  38   EFI_RESOURCE_ATTRIBUTE_TYPE  ResourceAttribute;
  39   EFI_PHYSICAL_ADDRESS         PhysicalStart;
  40   UINT64                       NumberOfBytes;
  41 } ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR;
  42
  43 /**
  44   Return the core position from the value of its MpId register
  45
  46   This function returns the core position from the position 0 in the processor.
  47   This function might be called from assembler before any stack is set.
  48
  49   @return   Return the core position
  50
  51 **/
  52 UINTN
  53 ArmPlatformGetCorePosition (
  54   IN UINTN MpId
  55   );
  56
  57 /**
  58   Return a non-zero value if the callee is the primary core
  59
  60   This function returns a non-zero value if the callee is the primary core.
  61   The primary core is the core responsible to initialize the hardware and run UEFI.
  62   This function might be called from assembler before any stack is set.
  63
  64   @return   Return a non-zero value if the callee is the primary core.
  65
  66 **/
  67 UINTN
  68 ArmPlatformIsPrimaryCore (
  69   IN UINTN MpId
  70   );
  71
  72 /**
  73   Return the MpId of the primary core
  74
  75   This function returns the MpId of the primary core.
  76   This function might be called from assembler before any stack is set.
  77
  78   @return   Return the MpId of the primary core
  79
  80 **/
  81 UINTN
  82 ArmPlatformGetPrimaryCoreMpId (
  83   VOID
  84   );
  85
  86 /**
  87   Return the current Boot Mode
  88
  89   This function returns the boot reason on the platform
  90
  91   @return   Return the current Boot Mode of the platform
  92
  93 **/
  94 EFI_BOOT_MODE
  95 ArmPlatformGetBootMode (
  96   VOID
  97   );
  98
  99 /**
 100   Initialize controllers that must setup in the normal world
 101
 102   This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei
 103   in the PEI phase.
 104
 105 **/
 106 RETURN_STATUS
 107 ArmPlatformInitialize (
 108   IN  UINTN                     MpId
 109   );
 110
 111 /**
 112   Initialize the system (or sometimes called permanent) memory
 113
 114   This memory is generally represented by the DRAM.
 115
 116 **/
 117 VOID
 118 ArmPlatformInitializeSystemMemory (
 119   VOID
 120   );
 121
 122 /**
 123   Return the Virtual Memory Map of your platform
 124
 125   This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
 126
 127   @param[out]   VirtualMemoryMap    Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
 128                                     Virtual Memory mapping. This array must be ended by a zero-filled
 129                                     entry
 130
 131 **/
 132 VOID
 133 ArmPlatformGetVirtualMemoryMap (
 134   OUT ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap
 135   );
 136
 137 /**
 138   Return the Platform specific PPIs
 139
 140   This function exposes the Platform Specific PPIs. They can be used by any PrePi modules or passed
 141   to the PeiCore by PrePeiCore.
 142
 143   @param[out]   PpiListSize         Size in Bytes of the Platform PPI List
 144   @param[out]   PpiList             Platform PPI List
 145
 146 **/
 147 VOID
 148 ArmPlatformGetPlatformPpiList (
 149   OUT UINTN                   *PpiListSize,
 150   OUT EFI_PEI_PPI_DESCRIPTOR  **PpiList
 151   );
 152
 153 #endif