ArmPlatformPkg/ArmPlatformLib: Added ArmPlatformGetPrimaryCoreMpId()

[mirror_edk2.git] / ArmPlatformPkg / Library / ArmPlatformLibNull / Arm / ArmPlatformHelper.asm

diff --git a/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.asm b/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.asm
index 6d35182a275ccc03c7cf775493f1f14c61f81670..84f1ee35bfe009927c506a80fff5e6e98a03c9be 100644 (file)
--- a/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.asm
+++ b/ArmPlatformPkg/Library/ArmPlatformLibNull/Arm/ArmPlatformHelper.asm
@@ -17,6 +17,7 @@
   INCLUDE AsmMacroIoLib.inc\r
 \r
   EXPORT  ArmPlatformGetCorePosition\r
+  EXPORT  ArmPlatformGetPrimaryCoreMpId\r
   EXPORT  ArmPlatformIsPrimaryCore\r
 \r
   IMPORT  _gPcd_FixedAtBuild_PcdArmPrimaryCore\r
@@ -36,6 +37,16 @@ ArmPlatformGetCorePosition FUNCTION
   bx   lr\r
   ENDFUNC\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