diff options
Diffstat (limited to 'ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S')
-rw-r--r-- | ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S | 41 |
1 files changed, 12 insertions, 29 deletions
diff --git a/ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S b/ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S index 1fed84ed0a..9c040b17f2 100644 --- a/ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S +++ b/ArmVirtPkg/PrePi/AArch64/ModuleEntryPoint.S @@ -1,6 +1,6 @@ //
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
-// Copyright (c) 2015, Linaro Limited. All rights reserved.
+// Copyright (c) 2015-2016, Linaro Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@@ -13,23 +13,10 @@ //
#include <AsmMacroIoLibV8.h>
-#include <Base.h>
-#include <Library/PcdLib.h>
-#include <AutoGen.h>
-
-.text
-.align 3
-
-GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
-GCC_ASM_IMPORT(ArmReadMpidr)
-GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
-GCC_ASM_IMPORT(ArmPlatformStackSet)
-GCC_ASM_EXPORT(_ModuleEntryPoint)
-ASM_GLOBAL ASM_PFX(mSystemMemoryEnd)
-ASM_PFX(mSystemMemoryEnd): .8byte 0
+ASM_GLOBAL ASM_PFX(mSystemMemoryEnd)
-ASM_PFX(_ModuleEntryPoint):
+ASM_FUNC(_ModuleEntryPoint)
//
// We are built as a ET_DYN PIE executable, so we need to process all
// relative relocations regardless of whether or not we are executing from
@@ -86,12 +73,11 @@ _SetupStackPosition: // Calculate Top of the Firmware Device
ldr x2, PcdGet64 (PcdFdBaseAddress)
- ldr w3, PcdGet32 (PcdFdSize)
- sub x3, x3, #1
+ MOV32 (w3, FixedPcdGet32 (PcdFdSize) - 1)
add x3, x3, x2 // x3 = FdTop = PcdFdBaseAddress + PcdFdSize
// UEFI Memory Size (stacks are allocated in this region)
- LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), x4)
+ MOV32 (x4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize))
//
// Reserve the memory for the UEFI region (contain stacks on its top)
@@ -122,9 +108,7 @@ _SetupAlignedStack: _SetupOverflowStack:
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE
// aligned (4KB)
- LoadConstantToReg (EFI_PAGE_MASK, x21)
- and x21, x21, x1
- sub x1, x1, x21
+ and x1, x1, ~EFI_PAGE_MASK
_GetBaseUefiMemory:
// Calculate the Base of the UEFI Memory
@@ -133,22 +117,19 @@ _GetBaseUefiMemory: _GetStackBase:
// r1 = The top of the Mpcore Stacks
// Stack for the primary core = PrimaryCoreStack
- LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
+ MOV32 (x2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
sub x22, x1, x2
// Stack for the secondary core = Number of Cores - 1
- LoadConstantToReg (FixedPcdGet32(PcdCoreCount), x0)
- sub x0, x0, #1
- LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x1)
- mul x1, x1, x0
+ MOV32 (x1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
sub x22, x22, x1
// x22 = The base of the MpCore Stacks (primary stack & secondary stacks)
mov x0, x22
mov x1, x20
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
- LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
- LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x3)
+ MOV32 (x2, FixedPcdGet32(PcdCPUCorePrimaryStackSize))
+ MOV32 (x3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize))
bl ASM_PFX(ArmPlatformStackSet)
// Is it the Primary Core ?
@@ -170,3 +151,5 @@ _PrepareArguments: _NeverReturn:
b _NeverReturn
+
+ASM_PFX(mSystemMemoryEnd): .8byte 0
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