diff options
Diffstat (limited to 'ArmPkg/Include/AsmMacroIoLib.h')
| -rw-r--r-- | ArmPkg/Include/AsmMacroIoLib.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/ArmPkg/Include/AsmMacroIoLib.h b/ArmPkg/Include/AsmMacroIoLib.h index c8692fcfd7..c507329741 100644 --- a/ArmPkg/Include/AsmMacroIoLib.h +++ b/ArmPkg/Include/AsmMacroIoLib.h @@ -122,9 +122,12 @@ // Convert the (ClusterId,CoreId) into a Core Position
// We assume there are 4 cores per cluster
-#define GetCorePositionFromMpId(Pos, MpId, Tmp) \
- lsr Pos, MpId, #6 ; \
- and Tmp, MpId, #3 ; \
+// Note: 0xFFFF is the magic value for ARM_CORE_MASK | ARM_CLUSTER_MASK
+#define GetCorePositionFromMpId(Pos, MpId, Tmp) \
+ ldr Tmp, =0xFFFF \
+ and 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
@@ -207,10 +210,15 @@ _InitializePrimaryStackEnd: #define LoadConstantToReg(Data, Reg) \
ldr Reg, =Data
-
-#define GetCorePositionFromMpId(Pos, MpId, Tmp) \
- lsr Pos, MpId, #6 ; \
- and Tmp, MpId, #3 ; \
+
+// Convert the (ClusterId,CoreId) into a Core Position
+// We assume there are 4 cores per cluster
+// Note: 0xFFFF is the magic value for ARM_CORE_MASK | ARM_CLUSTER_MASK
+#define GetCorePositionFromMpId(Pos, MpId, Tmp) \
+ ldr Tmp, =0xFFFF ; \
+ and MpId, Tmp ; \
+ lsr Pos, MpId, #6 ; \
+ and Tmp, MpId, #3 ; \
add Pos, Pos, Tmp
#define SetPrimaryStack(StackTop, GlobalSize, Tmp) \
|