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| 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 /ArmPlatformPkg/Include | |
| parent | bc7b889a033a2617b650fbb5596d4f02530090bd (diff) | |
| download | edk2-bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61.zip edk2-bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61.tar.gz edk2-bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61.tar.bz2 | |
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 'ArmPlatformPkg/Include')
| -rw-r--r-- | ArmPlatformPkg/Include/Library/ArmPlatformLib.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/ArmPlatformPkg/Include/Library/ArmPlatformLib.h b/ArmPlatformPkg/Include/Library/ArmPlatformLib.h index 4ea1445..b58ddd5 100644 --- a/ArmPlatformPkg/Include/Library/ArmPlatformLib.h +++ b/ArmPlatformPkg/Include/Library/ArmPlatformLib.h @@ -40,12 +40,36 @@ typedef struct { UINT64 NumberOfBytes;
} ARM_SYSTEM_MEMORY_REGION_DESCRIPTOR;
+/**
+ Return the core position from the value of its MpId register
+
+ This function returns the core position from the position 0 in the processor.
+ This function might be called from assembler before any stack is set.
+
+ @return Return the core position
+
+**/
UINTN
ArmPlatformGetCorePosition (
IN UINTN MpId
);
/**
+ Return a non-zero value if the callee is the primary core
+
+ This function returns a non-zero value if the callee is the primary core.
+ The primary core is the core responsible to initialize the hardware and run UEFI.
+ This function might be called from assembler before any stack is set.
+
+ @return Return a non-zero value if the callee is the primary core.
+
+**/
+UINTN
+ArmPlatformIsPrimaryCore (
+ IN UINTN MpId
+ );
+
+/**
Return the current Boot Mode
This function returns the boot reason on the platform
|