diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
| commit | bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61 (patch) | |
| tree | 9c2d34dc7e57c2c52224c2990946778d955359fe /ArmPkg/Include/AsmMacroIoLib.h | |
| parent | bc7b889a033a2617b650fbb5596d4f02530090bd (diff) | |
| download | edk2-platforms-bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61.tar.xz | |
ArmPlatformPkg/ArmPlatformLib: Added support for ArmPlatformIsPrimaryCore()
Checking if a core if the primary/boot core used to be done with the macro
IS_PRIMARY_CORE().
Some platforms exposes configuration registers to change the primary core.
Replacing the macro IS_PRIMARY_CORE() by ArmPlatformIsPrimaryCore() allows
some flexibility in the way to check the primary core.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Ryan Harkin <ryan.harkin@linaro.org>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14344 6f19259b-4bc3-4df7-8a09-765794883524
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) \
|