ArmPlatformPkg/ArmPlatformLib: Added ArmPlatformGetPrimaryCoreMpId()

[mirror_edk2.git] / ArmPlatformPkg / ArmVExpressPkg / Library / ArmVExpressLibCTA9x4 / CTA9x4Helper.asm

//\r
//  Copyright (c) 2013, ARM Limited. All rights reserved.\r
//  \r
//  This program and the accompanying materials                          \r
//  are licensed and made available under the terms and conditions of the BSD License         \r
//  which accompanies this distribution.  The full text of the license may be found at        \r
//  http://opensource.org/licenses/bsd-license.php                                            \r
//\r
//  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
//  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
//\r
//\r
\r
#include <AsmMacroIoLib.h>\r
\r
#include <AutoGen.h>\r
\r
  INCLUDE AsmMacroIoLib.inc\r
\r
  EXPORT  ArmPlatformIsPrimaryCore\r
  EXPORT  ArmPlatformGetPrimaryCoreMpId\r
\r
  IMPORT  _gPcd_FixedAtBuild_PcdArmPrimaryCore\r
  IMPORT  _gPcd_FixedAtBuild_PcdArmPrimaryCoreMask\r
\r
  AREA CTA9x4Helper, CODE, READONLY\r
\r
//UINTN\r
//ArmPlatformGetPrimaryCoreMpId (\r
//  VOID\r
//  );\r
ArmPlatformGetPrimaryCoreMpId FUNCTION\r
  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r0)\r
  ldr     r0, [r0]\r
  bx 	  lr\r
  ENDFUNC\r
\r
//UINTN\r
//ArmPlatformIsPrimaryCore (\r
//  IN UINTN MpId\r
//  );\r
ArmPlatformIsPrimaryCore FUNCTION\r
  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r1)\r
  ldr   r1, [r1]\r
  and   r0, r0, r1\r
  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r1)\r
  ldr   r1, [r1]\r
  cmp   r0, r1\r
  moveq r0, #1\r
  movne r0, #0\r
  bx    lr\r
  ENDFUNC\r
\r
  END\r