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ArmPlatformPkg/PrePi: 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 PrePi 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@18992 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel 2015-11-27 17:07:06 +00:00 committed by abiesheuvel
parent 5eeba3b7f1
commit f2e17a0731
9 changed files with 4 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S
View File

@ -133,16 +133,10 @@ _GetStackBase:
cmp x0, #1
bne _PrepareArguments
_ReserveGlobalVariable:
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), x0)
// InitializePrimaryStack($GlobalVariableSize, $Tmp1, $Tmp2)
InitializePrimaryStack(x0, x1, x2)
_PrepareArguments:
mov x0, x10
mov x1, x11
mov x2, x12
mov x3, sp
// Move sec startup address into a data register
// Ensure we're jumping to FV version of the code (not boot remapped alias)
@ -152,7 +146,6 @@ _PrepareArguments:
// x0 = MpId
// x1 = UefiMemoryBase
// x2 = StacksBase
// x3 = GlobalVariableBase
blr x4
_NeverReturn:

6
ArmPlatformPkg/PrePi/Arm/ModuleEntryPoint.S
View File

@ -141,11 +141,6 @@ _GetStackBase:
cmp r0, #1
bne _PrepareArguments
_ReserveGlobalVariable:
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), r0)
// InitializePrimaryStack($GlobalVariableSize, $Tmp1)
InitializePrimaryStack(r0, r1)
_PrepareArguments:
mov r0, r8
mov r1, r9
@ -160,7 +155,6 @@ _PrepareArguments:
// r0 = MpId
// r1 = UefiMemoryBase
// r2 = StacksBase
// r3 = GlobalVariableBase
blx r4
_NeverReturn:

7
ArmPlatformPkg/PrePi/Arm/ModuleEntryPoint.asm
View File

@ -143,16 +143,10 @@ _GetStackBase
cmp r0, #1
bne _PrepareArguments
_ReserveGlobalVariable
LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), r0)
// InitializePrimaryStack($GlobalVariableSize, $Tmp1)
InitializePrimaryStack r0, r1
_PrepareArguments
mov r0, r8
mov r1, r9
mov r2, r10
mov r3, sp
// Move sec startup address into a data register
// Ensure we're jumping to FV version of the code (not boot remapped alias)
@ -162,7 +156,6 @@ _PrepareArguments
// r0 = MpId
// r1 = UefiMemoryBase
// r2 = StacksBase
// r3 = GlobalVariableBase
blx r4
_NeverReturn

3
ArmPlatformPkg/PrePi/MainMPCore.c
View File

@ -22,7 +22,6 @@ VOID
PrimaryMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase,
IN UINT64 StartTimeStamp
)
{
@ -35,7 +34,7 @@ PrimaryMain (
ArmGicSendSgiTo (PcdGet32(PcdGicDistributorBase), ARM_GIC_ICDSGIR_FILTER_EVERYONEELSE, 0x0E, PcdGet32 (PcdGicSgiIntId));
}
PrePiMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
// We must never return
ASSERT(FALSE);

3
ArmPlatformPkg/PrePi/MainUniCore.c
View File

@ -18,7 +18,6 @@ VOID
PrimaryMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase,
IN UINT64 StartTimeStamp
)
{
@ -27,7 +26,7 @@ PrimaryMain (
ASSERT(ArmIsMpCore() == 0);
DEBUG_CODE_END();
PrePiMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
PrePiMain (UefiMemoryBase, StacksBase, StartTimeStamp);
// We must never return
ASSERT(FALSE);

3
ArmPlatformPkg/PrePi/PeiMPCore.inf
View File

@ -67,7 +67,6 @@
gArmMpCoreInfoPpiGuid
[Guids]
gArmGlobalVariableGuid
gArmMpCoreInfoGuid
[FeaturePcd]
@ -89,8 +88,6 @@
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
gArmTokenSpaceGuid.PcdGicSgiIntId

3
ArmPlatformPkg/PrePi/PeiUniCore.inf
View File

@ -66,7 +66,6 @@
gArmMpCoreInfoPpiGuid
[Guids]
gArmGlobalVariableGuid
gArmMpCoreInfoGuid
[FeaturePcd]
@ -88,8 +87,6 @@
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize
gArmPlatformTokenSpaceGuid.PcdCoreCount

31
ArmPlatformPkg/PrePi/PrePi.c
View File

@ -25,7 +25,6 @@
#include <Ppi/GuidedSectionExtraction.h>
#include <Ppi/ArmMpCoreInfo.h>
#include <Guid/LzmaDecompress.h>
#include <Guid/ArmGlobalVariableHob.h>
#include "PrePi.h"
#include "LzmaDecompress.h"
@ -33,9 +32,6 @@
#define IS_XIP() (((UINT32)FixedPcdGet32 (PcdFdBaseAddress) > mSystemMemoryEnd) || \
((FixedPcdGet32 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) < FixedPcdGet64 (PcdSystemMemoryBase)))
// Not used when PrePi in run in XIP mode
UINTN mGlobalVariableBase = 0;
EFI_STATUS
EFIAPI
ExtractGuidedSectionLibConstructor (
@ -48,23 +44,6 @@ LzmaDecompressLibConstructor (
VOID
);
VOID
EFIAPI
BuildGlobalVariableHob (
IN EFI_PHYSICAL_ADDRESS GlobalVariableBase,
IN UINT32 GlobalVariableSize
)
{
ARM_HOB_GLOBAL_VARIABLE *Hob;
Hob = CreateHob (EFI_HOB_TYPE_GUID_EXTENSION, sizeof (ARM_HOB_GLOBAL_VARIABLE));
ASSERT(Hob != NULL);
CopyGuid (&(Hob->Header.Name), &gArmGlobalVariableGuid);
Hob->GlobalVariableBase = GlobalVariableBase;
Hob->GlobalVariableSize = GlobalVariableSize;
}
EFI_STATUS
GetPlatformPpi (
IN EFI_GUID *PpiGuid,
@ -93,7 +72,6 @@ VOID
PrePiMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase,
IN UINT64 StartTimeStamp
)
{
@ -146,9 +124,6 @@ PrePiMain (
}
BuildStackHob (StacksBase, StacksSize);
// Declare the Global Variable HOB
BuildGlobalVariableHob (GlobalVariableBase, FixedPcdGet32 (PcdPeiGlobalVariableSize));
//TODO: Call CpuPei as a library
BuildCpuHob (PcdGet8 (PcdPrePiCpuMemorySize), PcdGet8 (PcdPrePiCpuIoSize));
@ -203,8 +178,7 @@ VOID
CEntryPoint (
IN UINTN MpId,
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase
IN UINTN StacksBase
)
{
UINT64 StartTimeStamp;
@ -235,7 +209,6 @@ CEntryPoint (
// Define the Global Variable region when we are not running in XIP
if (!IS_XIP()) {
if (ArmPlatformIsPrimaryCore (MpId)) {
mGlobalVariableBase = GlobalVariableBase;
if (ArmIsMpCore()) {
// Signal the Global Variable Region is defined (event: ARM_CPU_EVENT_DEFAULT)
ArmCallSEV ();
@ -249,7 +222,7 @@ CEntryPoint (
// If not primary Jump to Secondary Main
if (ArmPlatformIsPrimaryCore (MpId)) {
// Goto primary Main.
PrimaryMain (UefiMemoryBase, StacksBase, GlobalVariableBase, StartTimeStamp);
PrimaryMain (UefiMemoryBase, StacksBase, StartTimeStamp);
} else {
SecondaryMain (MpId);
}

2
ArmPlatformPkg/PrePi/PrePi.h
View File

@ -41,7 +41,6 @@ VOID
PrePiMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase,
IN UINT64 StartTimeStamp
);
@ -62,7 +61,6 @@ VOID
PrimaryMain (
IN UINTN UefiMemoryBase,
IN UINTN StacksBase,
IN UINTN GlobalVariableBase,
IN UINT64 StartTimeStamp
);