diff options
| author | Harry Liebel <Harry.Liebel@arm.com> | 2013-07-18 19:06:52 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-07-18 19:06:52 +0000 |
| commit | 1bc8326695a2181cb5934c3dfb01b0a26c4096a0 (patch) | |
| tree | 759dbcb62f7e0222f5962b9228a72a6d170b215b /ArmPlatformPkg/PrePi | |
| parent | 93deac7e25a9adc43ea314e829ec50502ce5c39e (diff) | |
ArmPlatformPkg: Added Aarch64 support
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Harry Liebel <Harry.Liebel@arm.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14489 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/PrePi')
| -rw-r--r-- | ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c | 33 | ||||
| -rw-r--r-- | ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S | 148 | ||||
| -rw-r--r-- | ArmPlatformPkg/PrePi/Arm/ArchPrePi.c | 29 | ||||
| -rwxr-xr-x | ArmPlatformPkg/PrePi/PeiMPCore.inf | 5 | ||||
| -rwxr-xr-x | ArmPlatformPkg/PrePi/PeiUniCore.inf | 5 | ||||
| -rwxr-xr-x | ArmPlatformPkg/PrePi/PrePi.c | 8 | ||||
| -rw-r--r-- | ArmPlatformPkg/PrePi/PrePi.h | 6 |
7 files changed, 228 insertions, 6 deletions
diff --git a/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c b/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c new file mode 100644 index 0000000000..217986107e --- /dev/null +++ b/ArmPlatformPkg/PrePi/AArch64/ArchPrePi.c @@ -0,0 +1,33 @@ +/** @file
+*
+* 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
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include "PrePi.h"
+
+#include <Chipset/AArch64.h>
+
+VOID
+ArchInitialize (
+ VOID
+ )
+{
+ // Enable Floating Point
+ if (FixedPcdGet32 (PcdVFPEnabled)) {
+ ArmEnableVFP ();
+ }
+
+ if (ArmReadCurrentEL () == AARCH64_EL2) {
+ // Trap General Exceptions. All exceptions that would be routed to EL1 are routed to EL2
+ ArmWriteHcr (ARM_HCR_TGE);
+ }
+}
diff --git a/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S b/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S new file mode 100644 index 0000000000..e442819539 --- /dev/null +++ b/ArmPlatformPkg/PrePi/AArch64/ModuleEntryPoint.S @@ -0,0 +1,148 @@ +//
+// 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
+// which accompanies this distribution. The full text of the license may be found at
+// http://opensource.org/licenses/bsd-license.php
+//
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+//
+//
+
+#include <AsmMacroIoLibV8.h>
+#include <Base.h>
+#include <Library/PcdLib.h>
+#include <AutoGen.h>
+
+#include <Chipset/ArmV7.h>
+
+.text
+.align 3
+
+GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
+GCC_ASM_IMPORT(ArmReadMpidr)
+GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
+GCC_ASM_IMPORT(ArmPlatformStackSet)
+GCC_ASM_EXPORT(_ModuleEntryPoint)
+
+StartupAddr: .dword ASM_PFX(CEntryPoint)
+
+ASM_PFX(_ModuleEntryPoint):
+ // Do early platform specific actions
+ bl ASM_PFX(ArmPlatformPeiBootAction)
+
+ // Get ID of this CPU in Multicore system
+ bl ASM_PFX(ArmReadMpidr)
+ // Keep a copy of the MpId register value
+ mov x10, x0
+
+_SetSVCMode:
+// Check if we can install the stack at the top of the System Memory or if we need
+// to install the stacks at the bottom of the Firmware Device (case the FD is located
+// at the top of the DRAM)
+_SetupStackPosition:
+ // Compute Top of System Memory
+ LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryBase), x1)
+ LoadConstantToReg (FixedPcdGet32(PcdSystemMemorySize), x2)
+ sub x2, x2, #1
+ add x1, x1, x2 // x1 = SystemMemoryTop = PcdSystemMemoryBase + PcdSystemMemorySize
+
+ // Calculate Top of the Firmware Device
+ LoadConstantToReg (FixedPcdGet32(PcdFdBaseAddress), x2)
+ LoadConstantToReg (FixedPcdGet32(PcdFdSize), x3)
+ sub x3, x3, #1
+ add x3, x3, x2 // x3 = FdTop = PcdFdBaseAddress + PcdFdSize
+
+ // UEFI Memory Size (stacks are allocated in this region)
+ LoadConstantToReg (FixedPcdGet32(PcdSystemMemoryUefiRegionSize), x4)
+
+ //
+ // Reserve the memory for the UEFI region (contain stacks on its top)
+ //
+
+ // Calculate how much space there is between the top of the Firmware and the Top of the System Memory
+ subs x0, x1, x3 // x0 = SystemMemoryTop - FdTop
+ b.mi _SetupStack // Jump if negative (FdTop > SystemMemoryTop). Case when the PrePi is in XIP memory outside of the DRAM
+ cmp x0, x4
+ b.ge _SetupStack
+
+ // Case the top of stacks is the FdBaseAddress
+ mov x1, x2
+
+_SetupStack:
+ // x1 contains the top of the stack (and the UEFI Memory)
+
+ // Because the 'push' instruction is equivalent to 'stmdb' (decrement before), we need to increment
+ // one to the top of the stack. We check if incrementing one does not overflow (case of DRAM at the
+ // top of the memory space)
+ adds x11, x1, #1
+ b.cs _SetupOverflowStack
+
+_SetupAlignedStack:
+ mov x1, x11
+ b _GetBaseUefiMemory
+
+_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, x11)
+ and x11, x11, x1
+ sub x1, x1, x11
+
+_GetBaseUefiMemory:
+ // Calculate the Base of the UEFI Memory
+ sub x11, x1, x4
+
+_GetStackBase:
+ // r1 = The top of the Mpcore Stacks
+ // Stack for the primary core = PrimaryCoreStack
+ LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
+ sub x12, 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
+ sub x12, x12, x1
+
+ // x12 = The base of the MpCore Stacks (primary stack & secondary stacks)
+ mov x0, x12
+ mov x1, x10
+ //ArmPlatformStackSet(StackBase, MpId, PrimaryStackSize, SecondaryStackSize)
+ LoadConstantToReg (FixedPcdGet32(PcdCPUCorePrimaryStackSize), x2)
+ LoadConstantToReg (FixedPcdGet32(PcdCPUCoreSecondaryStackSize), x3)
+ bl ASM_PFX(ArmPlatformStackSet)
+
+ // Is it the Primary Core ?
+ mov x0, x10
+ bl ASM_PFX(ArmPlatformIsPrimaryCore)
+ 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)
+ ldr x4, StartupAddr
+
+ // Jump to PrePiCore C code
+ // x0 = MpId
+ // x1 = UefiMemoryBase
+ // x2 = StacksBase
+ // x3 = GlobalVariableBase
+ blr x4
+
+_NeverReturn:
+ b _NeverReturn
diff --git a/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c b/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c new file mode 100644 index 0000000000..075eb89e1b --- /dev/null +++ b/ArmPlatformPkg/PrePi/Arm/ArchPrePi.c @@ -0,0 +1,29 @@ +/** @file
+*
+* 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
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include "PrePi.h"
+
+VOID
+ArchInitialize (
+ VOID
+ )
+{
+ // Enable program flow prediction, if supported.
+ ArmEnableBranchPrediction ();
+
+ if (FixedPcdGet32 (PcdVFPEnabled)) {
+ ArmEnableVFP ();
+ }
+}
+
diff --git a/ArmPlatformPkg/PrePi/PeiMPCore.inf b/ArmPlatformPkg/PrePi/PeiMPCore.inf index a2814b6710..ee89c04ae1 100755 --- a/ArmPlatformPkg/PrePi/PeiMPCore.inf +++ b/ArmPlatformPkg/PrePi/PeiMPCore.inf @@ -24,8 +24,13 @@ MainMPCore.c
[Sources.ARM]
+ Arm/ArchPrePi.c
Arm/ModuleEntryPoint.S | GCC
Arm/ModuleEntryPoint.asm | RVCT
+
+[Sources.AArch64]
+ AArch64/ArchPrePi.c
+ AArch64/ModuleEntryPoint.S | GCC
[Packages]
MdePkg/MdePkg.dec
diff --git a/ArmPlatformPkg/PrePi/PeiUniCore.inf b/ArmPlatformPkg/PrePi/PeiUniCore.inf index dd6b82ed38..6cb94cbd77 100755 --- a/ArmPlatformPkg/PrePi/PeiUniCore.inf +++ b/ArmPlatformPkg/PrePi/PeiUniCore.inf @@ -24,8 +24,13 @@ MainUniCore.c
[Sources.ARM]
+ Arm/ArchPrePi.c
Arm/ModuleEntryPoint.S | GCC
Arm/ModuleEntryPoint.asm | RVCT
+
+[Sources.AArch64]
+ AArch64/ArchPrePi.c
+ AArch64/ModuleEntryPoint.S | GCC
[Packages]
MdePkg/MdePkg.dec
diff --git a/ArmPlatformPkg/PrePi/PrePi.c b/ArmPlatformPkg/PrePi/PrePi.c index 238b0989ab..e8b1ff7ed7 100755 --- a/ArmPlatformPkg/PrePi/PrePi.c +++ b/ArmPlatformPkg/PrePi/PrePi.c @@ -111,12 +111,8 @@ PrePiMain ( ((FixedPcdGet32 (PcdFdBaseAddress) >= FixedPcdGet32 (PcdSystemMemoryBase)) &&
((UINT32)(FixedPcdGet32 (PcdFdBaseAddress) + FixedPcdGet32 (PcdFdSize)) <= (UINT32)(FixedPcdGet32 (PcdSystemMemoryBase) + FixedPcdGet32 (PcdSystemMemorySize)))));
- // Enable program flow prediction, if supported.
- ArmEnableBranchPrediction ();
-
- if (FixedPcdGet32(PcdVFPEnabled)) {
- ArmEnableVFP();
- }
+ // Initialize the architecture specific bits
+ ArchInitialize ();
// Initialize the Serial Port
SerialPortInitialize ();
diff --git a/ArmPlatformPkg/PrePi/PrePi.h b/ArmPlatformPkg/PrePi/PrePi.h index deb8851688..e67795f449 100644 --- a/ArmPlatformPkg/PrePi/PrePi.h +++ b/ArmPlatformPkg/PrePi/PrePi.h @@ -81,4 +81,10 @@ GetPlatformPpi ( OUT VOID **Ppi
);
+// Initialize the Architecture specific controllers
+VOID
+ArchInitialize (
+ VOID
+ );
+
#endif /* _PREPI_H_ */
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