ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.S

   1 #
   2 #  Copyright (c) 2011-2013, ARM Limited. All rights reserved.
   3 #
   4 #  This program and the accompanying materials
   5 #  are licensed and made available under the terms and conditions of the BSD License
   6 #  which accompanies this distribution.  The full text of the license may be found at
   7 #  http://opensource.org/licenses/bsd-license.php
   8 #
   9 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11 #
  12 #
  13
  14 #include <AsmMacroIoLib.h>
  15 #include <Library/ArmLib.h>
  16
  17 .text
  18 .align 2
  19
  20 GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
  21 GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
  22 GCC_ASM_EXPORT(ArmPlatformGetCorePosition)
  23
  24 GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
  25 GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
  26
  27 //UINTN
  28 //ArmPlatformGetPrimaryCoreMpId (
  29 //  VOID
  30 //  );
  31 ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
  32   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r0)
  33   ldr   r0, [r0]
  34   bx    lr
  35
  36 //UINTN
  37 //ArmPlatformIsPrimaryCore (
  38 //  IN UINTN MpId
  39 //  );
  40 ASM_PFX(ArmPlatformIsPrimaryCore):
  41   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r1)
  42   ldr   r1, [r1]
  43   and   r0, r0, r1
  44   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r1)
  45   ldr   r1, [r1]
  46   cmp   r0, r1
  47   moveq r0, #1
  48   movne r0, #0
  49   bx    lr
  50
  51 //UINTN
  52 //ArmPlatformGetCorePosition (
  53 //  IN UINTN MpId
  54 //  );
  55 ASM_PFX(ArmPlatformGetCorePosition):
  56   and   r0, r0, #ARM_CORE_MASK
  57   bx    lr
  58
  59 ASM_FUNCTION_REMOVE_IF_UNREFERENCED