ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPlatformLib/ARM/VirtHelper.asm

   1 #
   2 #  Copyright (c) 2011-2014, ARM Limited. All rights reserved.
   3 #  Copyright (c) 2014, Linaro 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 <AsmMacroIoLib.h>
  16 #include <Base.h>
  17 #include <Library/ArmLib.h>
  18 #include <Library/PcdLib.h>
  19 #include <AutoGen.h>
  20
  21   INCLUDE AsmMacroIoLib.inc
  22
  23   EXPORT  ArmPlatformPeiBootAction
  24   EXPORT  ArmPlatformIsPrimaryCore
  25   EXPORT  ArmPlatformGetPrimaryCoreMpId
  26   EXPORT  ArmPlatformGetCorePosition
  27   EXPORT  ArmGetPhysAddrTop
  28
  29   IMPORT  _gPcd_FixedAtBuild_PcdArmPrimaryCore
  30   IMPORT  _gPcd_FixedAtBuild_PcdArmPrimaryCoreMask
  31   IMPORT  _gPcd_FixedAtBuild_PcdCoreCount
  32
  33 ArmPlatformPeiBootAction FUNCTION
  34   bx    lr
  35   ENDFUNC
  36
  37 //UINTN
  38 //ArmPlatformGetPrimaryCoreMpId (
  39 //  VOID
  40 //  );
  41 ArmPlatformGetPrimaryCoreMpId FUNCTION
  42   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
  43   ldr    r0, [r0]
  44   bx     lr
  45   ENDFUNC
  46
  47 //UINTN
  48 //ArmPlatformIsPrimaryCore (
  49 //  IN UINTN MpId
  50 //  );
  51 ArmPlatformIsPrimaryCore FUNCTION
  52   mov   r0, #1
  53   bx    lr
  54   ENDFUNC
  55
  56 //UINTN
  57 //ArmPlatformGetCorePosition (
  58 //  IN UINTN MpId
  59 //  );
  60 // With this function: CorePos = (ClusterId * 4) + CoreId
  61 ArmPlatformGetCorePosition FUNCTION
  62   and   r1, r0, #ARM_CORE_MASK
  63   and   r0, r0, #ARM_CLUSTER_MASK
  64   add   r0, r1, r0, LSR #6
  65   bx    lr
  66   ENDFUNC
  67
  68 //EFI_PHYSICAL_ADDRESS
  69 //GetPhysAddrTop (
  70 //  VOID
  71 //  );
  72 ArmGetPhysAddrTop FUNCTION
  73   mov   r0, #0x00000000
  74   mov   r1, #0x10000
  75   bx    lr
  76   ENDFUNC
  77
  78   END