//\r
-// Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r
+// Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r
//\r
// This program and the accompanying materials\r
// are licensed and made available under the terms and conditions of the BSD License\r
//\r
//\r
\r
-#include <AsmMacroIoLib.h>\r
-#include <Base.h>\r
-#include <Library/PcdLib.h>\r
#include <AutoGen.h>\r
-\r
#include <Chipset/ArmV7.h>\r
\r
INCLUDE AsmMacroIoLib.inc\r
- \r
+\r
IMPORT CEntryPoint\r
IMPORT ArmPlatformIsPrimaryCore\r
IMPORT ArmReadMpidr\r
+ IMPORT ArmPlatformPeiBootAction\r
IMPORT ArmPlatformStackSet\r
- \r
+ IMPORT mSystemMemoryEnd\r
+\r
EXPORT _ModuleEntryPoint\r
\r
PRESERVE8\r
AREA PrePiCoreEntryPoint, CODE, READONLY\r
- \r
+\r
StartupAddr DCD CEntryPoint\r
\r
_ModuleEntryPoint\r
+ // Do early platform specific actions\r
+ bl ArmPlatformPeiBootAction\r
+\r
// Get ID of this CPU in Multicore system\r
bl ArmReadMpidr\r
// Keep a copy of the MpId register value\r
- mov r6, r0\r
+ mov r8, r0\r
\r
_SetSVCMode\r
// Enter SVC mode, Disable FIQ and IRQ\r
// Check if we can install the stack at the top of the System Memory or if we need\r
// to install the stacks at the bottom of the Firmware Device (case the FD is located\r
// at the top of the DRAM)\r
+_SystemMemoryEndInit\r
+ mov32 r1, mSystemMemoryEnd\r
+ ldrd r2, r3, [r1]\r
+ teq r3, #0\r
+ moveq r1, r2\r
+ mvnne r1, #0\r
+\r
_SetupStackPosition\r
- // Compute Top of System Memory\r
- LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryBase), r1)\r
- LoadConstantToReg (FixedPcdGet32(PcdSystemMemorySize), r2)\r
- sub r2, r2, #1\r
- add r1, r1, r2 // r1 = SystemMemoryTop = PcdSystemMemoryBase + PcdSystemMemorySize\r
+ // r1 = SystemMemoryTop\r
\r
// Calculate Top of the Firmware Device\r
- LoadConstantToReg (FixedPcdGet32(PcdFdBaseAddress), r2)\r
- LoadConstantToReg (FixedPcdGet32(PcdFdSize), r3)\r
+ mov32 r2, FixedPcdGet32(PcdFdBaseAddress)\r
+ mov32 r3, FixedPcdGet32(PcdFdSize)\r
sub r3, r3, #1\r
add r3, r3, r2 // r3 = FdTop = PcdFdBaseAddress + PcdFdSize\r
\r
// UEFI Memory Size (stacks are allocated in this region)\r
- LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), r4)\r
+ mov32 r4, FixedPcdGet32(PcdSystemMemoryUefiRegionSize)\r
\r
//\r
// Reserve the memory for the UEFI region (contain stacks on its top)\r
//\r
\r
// Calculate how much space there is between the top of the Firmware and the Top of the System Memory\r
- subs r0, r1, r3 // r0 = SystemMemoryTop - FdTop\r
- bmi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM\r
- cmp r0, r4\r
- bge _SetupStack\r
+ subs r0, r1, r3 // r0 = SystemMemoryTop - FdTop\r
+ bmi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM\r
+ cmp r0, r4\r
+ bge _SetupStack\r
\r
// Case the top of stacks is the FdBaseAddress\r
- mov r1, r2\r
+ mov r1, r2\r
\r
_SetupStack\r
// r1 contains the top of the stack (and the UEFI Memory)\r
// Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment\r
// one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the\r
// top of the memory space)\r
- adds r7, r1, #1\r
+ adds r9, r1, #1\r
bcs _SetupOverflowStack\r
\r
_SetupAlignedStack\r
- mov r1, r7\r
+ mov r1, r9\r
b _GetBaseUefiMemory\r
\r
_SetupOverflowStack\r
// Case memory at the top of the address space. Ensure the top of the stack is EFI_PAGE_SIZE\r
// aligned (4KB)\r
- LoadConstantToReg (EFI_PAGE_MASK, r7)\r
- and r7, r7, r1\r
- sub r1, r1, r7\r
+ mov32 r9, EFI_PAGE_MASK\r
+ and r9, r9, r1\r
+ sub r1, r1, r9\r
\r
_GetBaseUefiMemory\r
// Calculate the Base of the UEFI Memory\r
- sub r7, r1, r4\r
+ sub r9, r1, r4\r
\r
_GetStackBase\r
// r1 = The top of the Mpcore Stacks\r
// Stack for the primary core = PrimaryCoreStack\r
- LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)\r
- sub r8, r1, r2\r
+ mov32 r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize)\r
+ sub r10, r1, r2\r
\r
// Stack for the secondary core = Number of Cores - 1\r
- LoadConstantToReg (FixedPcdGet32(PcdCoreCount), r0)\r
- sub r0, r0, #1\r
- LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), r1)\r
- mul r1, r1, r0\r
- sub r8, r8, r1\r
-\r
- // r8 = The base of the MpCore Stacks (primary stack & secondary stacks)\r
- mov r0, r8\r
- mov r1, r6\r
+ mov32 r1, (FixedPcdGet32(PcdCoreCount) - 1) * FixedPcdGet32(PcdCPUCoreSecondaryStackSize)\r
+ sub r10, r10, r1\r
+\r
+ // r10 = The base of the MpCore Stacks (primary stack & secondary stacks)\r
+ mov r0, r10\r
+ mov r1, r8\r
//ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)\r
- LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), r2)\r
- LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), r3)\r
- bl ArmPlatformStackSet\r
+ mov32 r2, FixedPcdGet32(PcdCPUCorePrimaryStackSize)\r
+ mov32 r3, FixedPcdGet32(PcdCPUCoreSecondaryStackSize)\r
+ bl ArmPlatformStackSet\r
\r
// Is it the Primary Core ?\r
- mov r0, r6\r
+ mov r0, r8\r
bl ArmPlatformIsPrimaryCore\r
cmp r0, #1\r
bne _PrepareArguments\r
\r
-_ReserveGlobalVariable\r
- LoadConstantToReg (FixedPcdGet32(PcdPeiGlobalVariableSize), r0)\r
- // InitializePrimaryStack($GlobalVariableSize, $Tmp1)\r
- InitializePrimaryStack r0, r1\r
-\r
_PrepareArguments\r
- mov r0, r6\r
- mov r1, r7\r
- mov r2, r8\r
- mov r3, sp\r
+ mov r0, r8\r
+ mov r1, r9\r
+ mov r2, r10\r
\r
// Move sec startup address into a data register\r
// Ensure we're jumping to FV version of the code (not boot remapped alias)\r
// r0 = MpId\r
// r1 = UefiMemoryBase\r
// r2 = StacksBase\r
- // r3 = GlobalVariableBase\r
blx r4\r
\r
_NeverReturn\r
projects / mirror_edk2.git / blobdiff