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
  16 .text
  17 .align 2
  18
  19 GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
  20 GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)
  21
  22 GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
  23 GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)
  24
  25 //UINTN
  26 //ArmPlatformGetPrimaryCoreMpId (
  27 //  VOID
  28 //  );
  29 ASM_PFX(ArmPlatformGetPrimaryCoreMpId):
  30   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r0)
  31   ldr   r0, [r0]
  32   bx    lr
  33
  34 //UINTN
  35 //ArmPlatformIsPrimaryCore (
  36 //  IN UINTN MpId
  37 //  );
  38 ASM_PFX(ArmPlatformIsPrimaryCore):
  39   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r1)
  40   ldr   r1, [r1]
  41   and   r0, r0, r1
  42   LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r1)
  43   ldr   r1, [r1]
  44   cmp   r0, r1
  45   moveq r0, #1
  46   movne r0, #0
  47   bx    lr
  48
  49 ASM_FUNCTION_REMOVE_IF_UNREFERENCED