ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.S

   1 //
   2 //  Copyright (c) 2012-2013, 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 ASM_FUNC(ArmPlatformPeiBootAction)
  18   bx    lr
  19
  20 //UINTN
  21 //ArmPlatformGetCorePosition (
  22 //  IN UINTN MpId
  23 //  );
  24 ASM_FUNC(ArmPlatformGetCorePosition)
  25   and   r1, r0, #ARM_CORE_MASK
  26   and   r0, r0, #ARM_CLUSTER_MASK
  27   add   r0, r1, r0, LSR #7
  28   bx    lr
  29
  30 //UINTN
  31 //ArmPlatformGetPrimaryCoreMpId (
  32 //  VOID
  33 //  );
  34 ASM_FUNC(ArmPlatformGetPrimaryCoreMpId)
  35   MOV32  (r0, FixedPcdGet32 (PcdArmPrimaryCore))
  36   bx    lr
  37
  38 //UINTN
  39 //ArmPlatformIsPrimaryCore (
  40 //  IN UINTN MpId
  41 //  );
  42 ASM_FUNC(ArmPlatformIsPrimaryCore)
  43   MOV32  (r1, FixedPcdGet32 (PcdArmPrimaryCoreMask))
  44   and   r0, r0, r1
  45   MOV32  (r1, FixedPcdGet32 (PcdArmPrimaryCore))
  46   cmp   r0, r1
  47   moveq r0, #1
  48   movne r0, #0
  49   bx    lr