X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;ds=sidebyside;f=ArmPkg%2FInclude%2FAsmMacroIoLib.h;h=644c65466508df7974fb73f105ceb46986c3ded7;hb=89bbce116a4dabb83c1be5953b030928f2d2f378;hp=9ef3430aaaa596d7ecd9e4c6afd697556a95944c;hpb=41b152c5f6ec3a5a6e51b4f8f0f90291a5895edc;p=mirror_edk2.git

diff --git a/ArmPkg/Include/AsmMacroIoLib.h b/ArmPkg/Include/AsmMacroIoLib.h
index 9ef3430aaa..644c654665 100644
--- a/ArmPkg/Include/AsmMacroIoLib.h
+++ b/ArmPkg/Include/AsmMacroIoLib.h
@@ -119,6 +119,21 @@
   .long (_Data)           ;                 \
 1:
 
+// Convert the (ClusterId,CoreId) into a Core Position
+// We assume there are 4 cores per cluster
+#define GetCorePositionInStack(Pos, MpId, Tmp) \
+  lsr   Pos, MpId, #6 ;                        \
+  and   Tmp, MpId, #3 ;                        \
+  add   Pos, Pos, Tmp
+
+// Reserve a region at the top of the Primary Core stack
+// for Global variables for the XIP phase
+#define SetPrimaryStack(StackTop, GlobalSize, Tmp)  \
+  and     Tmp, GlobalSize, #7         ;             \
+  rsbne   Tmp, Tmp, #8                ;             \
+  add     GlobalSize, GlobalSize, Tmp ;             \
+  sub     sp, StackTop, GlobalSize
+
 
 #elif defined (__GNUC__)