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ArmPlatformPkg/PrePeiCore: remove global variable allocation from lowlevel init 

Now that we dropped all ArmPlatformGlobalVariableLib dependencies,
there is no longer a need to allocate and clear out the global
variable region in the PrePeiCore init code. So remove it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18994 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel 2015-11-27 17:07:31 +00:00 committed by abiesheuvel
parent 6ef6afac50
commit 3707dee3da
7 changed files with 3 additions and 52 deletions
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7
ArmPlatformPkg/PrePeiCore/AArch64/PrePeiCoreEntryPoint.S
View File

@ -101,10 +101,5 @@ _PrepareArguments:
blr x3
_SetupPrimaryCoreStack:
// x1 contains the top of the primary stack
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), x2)
// The reserved space for global variable must be 16-bytes aligned for pushing
// 128-bit variable on the stack
SetPrimaryStack (x1, x2, x3, x4)
mov sp, x1
b _PrepareArguments

7
ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S
View File

@ -82,12 +82,7 @@ _PrepareArguments:
blx r3
_SetupPrimaryCoreStack:
// r1 contains the top of the primary stack
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), r2)
// The reserved space for global variable must be 8-bytes aligned for pushing
// 64-bit variable on the stack
SetPrimaryStack (r1, r2, r3)
mov sp, r1
b _PrepareArguments
_NeverReturn:

7
ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm
View File

@ -84,12 +84,7 @@ _PrepareArguments
blx r3
_SetupPrimaryCoreStack
// r1 contains the top of the primary stack
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), r2)
// The reserved space for global variable must be 8-bytes aligned for pushing
// 64-bit variable on the stack
SetPrimaryStack (r1, r2, r3)
mov sp, r1
b _PrepareArguments
_NeverReturn

23
ArmPlatformPkg/PrePeiCore/PrePeiCore.c
View File

@ -17,23 +17,15 @@
#include <Library/DebugAgentLib.h>
#include <Library/ArmLib.h>
#include <Ppi/ArmGlobalVariable.h>
#include "PrePeiCore.h"
CONST EFI_PEI_TEMPORARY_RAM_SUPPORT_PPI mTemporaryRamSupportPpi = { PrePeiCoreTemporaryRamSupport };
CONST ARM_GLOBAL_VARIABLE_PPI mGlobalVariablePpi = { PrePeiCoreGetGlobalVariableMemory };
CONST EFI_PEI_PPI_DESCRIPTOR gCommonPpiTable[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gEfiTemporaryRamSupportPpiGuid,
(VOID *) &mTemporaryRamSupportPpi
},
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gArmGlobalVariablePpiGuid,
(VOID *) &mGlobalVariablePpi
}
};
@ -146,18 +138,3 @@ PrePeiCoreTemporaryRamSupport (
return EFI_SUCCESS;
}
EFI_STATUS
PrePeiCoreGetGlobalVariableMemory (
OUT EFI_PHYSICAL_ADDRESS *GlobalVariableBase
)
{
ASSERT (GlobalVariableBase != NULL);
*GlobalVariableBase = (UINTN)PcdGet64 (PcdCPUCoresStackBase) +
(UINTN)PcdGet32 (PcdCPUCorePrimaryStackSize) -
(UINTN)PcdGet32 (PcdPeiGlobalVariableSize);
return EFI_SUCCESS;
}

5
ArmPlatformPkg/PrePeiCore/PrePeiCore.h
View File

@ -40,11 +40,6 @@ PrePeiCoreTemporaryRamSupport (
IN UINTN CopySize
);
EFI_STATUS
PrePeiCoreGetGlobalVariableMemory (
OUT EFI_PHYSICAL_ADDRESS *GlobalVariableBase
);
VOID
SecSwitchStack (
INTN StackDelta

3
ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
View File

@ -59,7 +59,6 @@
[Ppis]
gEfiTemporaryRamSupportPpiGuid
gArmGlobalVariablePpiGuid
gArmMpCoreInfoPpiGuid
[FeaturePcd]
@ -73,8 +72,6 @@
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
gArmTokenSpaceGuid.PcdGicSgiIntId

3
ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
View File

@ -58,7 +58,6 @@
[Ppis]
gEfiTemporaryRamSupportPpiGuid
gArmGlobalVariablePpiGuid
[FeaturePcd]
gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
@ -70,5 +69,3 @@
gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize