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author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
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committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
commit | bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61 (patch) | |
tree | 9c2d34dc7e57c2c52224c2990946778d955359fe /ArmPlatformPkg/PrePeiCore | |
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 'ArmPlatformPkg/PrePeiCore')
-rw-r--r-- | ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S | 18 | ||||
-rw-r--r-- | ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm | 16 | ||||
-rw-r--r-- | ArmPlatformPkg/PrePeiCore/PrePeiCore.c | 2 | ||||
-rw-r--r-- | ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf | 1 | ||||
-rw-r--r-- | ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf | 3 |
5 files changed, 20 insertions, 20 deletions
diff --git a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S index f902a251c2..1fb8570eb3 100644 --- a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S +++ b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S @@ -1,5 +1,5 @@ //
-// Copyright (c) 2011, ARM Limited. All rights reserved.
+// Copyright (c) 2011-2013, 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
@@ -20,6 +20,7 @@ .align 3
GCC_ASM_IMPORT(CEntryPoint)
+GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_IMPORT(ArmReadMpidr)
GCC_ASM_EXPORT(_ModuleEntryPoint)
@@ -28,18 +29,19 @@ StartupAddr: .word CEntryPoint ASM_PFX(_ModuleEntryPoint):
// Identify CPU ID
bl ASM_PFX(ArmReadMpidr)
- // Get ID of this CPU in Multicore system
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCoreMask), r1)
- and r5, r0, r1
-
+ // Keep a copy of the MpId register value
+ mov r5, r0
+
+ // Is it the Primary Core ?
+ bl ASM_PFX(ArmPlatformIsPrimaryCore)
+
// Get the top of the primary stacks (and the base of the secondary stacks)
LoadConstantToReg (FixedPcdGet32(PcdCPUCoresStackBase), r1)
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)
add r1, r1, r2
- // Is it the Primary Core ?
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r3)
- cmp r5, r3
+ // r0 is equal to 1 if I am the primary core
+ cmp r0, #1
beq _SetupPrimaryCoreStack
_SetupSecondaryCoreStack:
diff --git a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm index a3dd1fb2c6..3b756b492a 100644 --- a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm +++ b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm @@ -1,5 +1,5 @@ //
-// Copyright (c) 2011, ARM Limited. All rights reserved.
+// Copyright (c) 2011-2013, 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
@@ -19,6 +19,7 @@ INCLUDE AsmMacroIoLib.inc
IMPORT CEntryPoint
+ IMPORT ArmPlatformIsPrimaryCore
IMPORT ArmReadMpidr
EXPORT _ModuleEntryPoint
@@ -30,18 +31,19 @@ StartupAddr DCD CEntryPoint _ModuleEntryPoint
// Identify CPU ID
bl ArmReadMpidr
- // Get ID of this CPU in Multicore system
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCoreMask), r1)
- and r5, r0, r1
+ // Keep a copy of the MpId register value
+ mov r5, r0
+ // Is it the Primary Core ?
+ bl ArmPlatformIsPrimaryCore
+
// Get the top of the primary stacks (and the base of the secondary stacks)
LoadConstantToReg (FixedPcdGet32(PcdCPUCoresStackBase), r1)
LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)
add r1, r1, r2
- // Is it the Primary Core ?
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r3)
- cmp r5, r3
+ // r0 is equal to 1 if I am the primary core
+ cmp r0, #1
beq _SetupPrimaryCoreStack
_SetupSecondaryCoreStack
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c index fdd8697edf..ececd4c763 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c @@ -93,7 +93,7 @@ CEntryPoint ( //Note: The MMU will be enabled by MemoryPeim. Only the primary core will have the MMU on.
// If not primary Jump to Secondary Main
- if (IS_PRIMARY_CORE(MpId)) {
+ if (ArmPlatformIsPrimaryCore (MpId)) {
// Initialize the Debug Agent for Source Level Debugging
InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
SaveAndSetDebugTimerInterrupt (TRUE);
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf index 91f9b3a784..4658486336 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf @@ -62,7 +62,6 @@ gArmTokenSpaceGuid.PcdFvBaseAddress
gArmTokenSpaceGuid.PcdFvSize
- gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
gArmTokenSpaceGuid.PcdArmPrimaryCore
gArmTokenSpaceGuid.PcdGicPrimaryCoreId
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf index bf590dbac0..13f86902b6 100644 --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf @@ -60,9 +60,6 @@ gArmTokenSpaceGuid.PcdFvBaseAddress
gArmTokenSpaceGuid.PcdFvSize
- gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
- gArmTokenSpaceGuid.PcdArmPrimaryCore
-
gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
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