ArmPlatformPkg/ArmPlatformLib: Added ArmPlatformGetPrimaryCoreMpId()

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

#\r
#  Copyright (c) 2011-2013, 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
.text\r
.align 2\r
\r
GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)\r
GCC_ASM_EXPORT(ArmPlatformGetPrimaryCoreMpId)\r
\r
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)\r
GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask)\r
\r
//UINTN\r
//ArmPlatformGetPrimaryCoreMpId (\r
//  VOID\r
//  );\r
ASM_PFX(ArmPlatformGetPrimaryCoreMpId):\r
  LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r0)\r
  ldr   r0, [r0]\r
  bx    lr\r
\r
//UINTN\r
//ArmPlatformIsPrimaryCore (\r
//  IN UINTN MpId\r
//  );\r
ASM_PFX(ArmPlatformIsPrimaryCore):\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
\r
ASM_FUNCTION_REMOVE_IF_UNREFERENCED\r