diff options
Diffstat (limited to 'ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.asm')
-rw-r--r-- | ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.asm | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.asm b/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.asm new file mode 100644 index 0000000000..429026e015 --- /dev/null +++ b/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Helper.asm @@ -0,0 +1,43 @@ +//
+// Copyright (c) 2013, ARM Limited. All rights reserved.
+//
+// This program and the accompanying materials
+// are licensed and made available under the terms and conditions of the BSD License
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+//
+
+#include <AsmMacroIoLib.h>
+
+#include <AutoGen.h>
+
+ INCLUDE AsmMacroIoLib.inc
+
+ EXPORT ArmPlatformIsPrimaryCore
+
+ IMPORT _gPcd_FixedAtBuild_PcdArmPrimaryCore
+ IMPORT _gPcd_FixedAtBuild_PcdArmPrimaryCoreMask
+
+ AREA CTA9x4Helper, CODE, READONLY
+
+//UINTN
+//ArmPlatformIsPrimaryCore (
+// IN UINTN MpId
+// );
+ArmPlatformIsPrimaryCore FUNCTION
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCoreMask, r1)
+ ldr r1, [r1]
+ and r0, r0, r1
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r1)
+ ldr r1, [r1]
+ cmp r0, r1
+ moveq r0, #1
+ movne r0, #0
+ bx lr
+ ENDFUNC
+
+ END
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