sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ArmPkg: Added Aarch64 support

Browse Source 
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@14486 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Harry Liebel
2013-07-18 18:07:46 +00:00
committed by oliviermartin
parent 8477cb6e15
commit 25402f5d06
58 changed files with 4786 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

146
ArmPkg/Library/BaseMemoryLibStm/AArch64/CopyMem.c Normal file
View File

@@ -0,0 +1,146 @@
/** @file
Copyright (c) 2012-2013, ARM Ltd. All rights reserved.<BR>
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 "MemLibInternals.h"
/**
Copy Length bytes from Source to Destination.
@param DestinationBuffer Target of copy
@param SourceBuffer Place to copy from
@param Length Number of bytes to copy
@return Destination
**/
VOID *
EFIAPI
InternalMemCopyMem (
OUT VOID *DestinationBuffer,
IN CONST VOID *SourceBuffer,
IN UINTN Length
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memcpy()
//
volatile UINT8 *Destination8;
CONST UINT8 *Source8;
volatile UINT32 *Destination32;
CONST UINT32 *Source32;
volatile UINT64 *Destination64;
CONST UINT64 *Source64;
UINTN Alignment;
if ((((UINTN)DestinationBuffer & 0x7) == 0) && (((UINTN)SourceBuffer & 0x7) == 0) && (Length >= 8)) {
if (SourceBuffer > DestinationBuffer) {
Destination64 = (UINT64*)DestinationBuffer;
Source64 = (CONST UINT64*)SourceBuffer;
while (Length >= 8) {
*(Destination64++) = *(Source64++);
Length -= 8;
}
// Finish if there are still some bytes to copy
Destination8 = (UINT8*)Destination64;
Source8 = (CONST UINT8*)Source64;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination64 = (UINT64*)((UINTN)DestinationBuffer + Length);
Source64 = (CONST UINT64*)((UINTN)SourceBuffer + Length);
// Destination64 and Source64 were aligned on a 64-bit boundary
// but if length is not a multiple of 8 bytes then they won't be
// anymore.
Alignment = Length & 0x7;
if (Alignment != 0) {
Destination8 = (UINT8*)Destination64;
Source8 = (CONST UINT8*)Source64;
while (Alignment-- != 0) {
*(--Destination8) = *(--Source8);
--Length;
}
Destination64 = (UINT64*)Destination8;
Source64 = (CONST UINT64*)Source8;
}
while (Length > 0) {
*(--Destination64) = *(--Source64);
Length -= 8;
}
}
} else if ((((UINTN)DestinationBuffer & 0x3) == 0) && (((UINTN)SourceBuffer & 0x3) == 0) && (Length >= 4)) {
if (SourceBuffer > DestinationBuffer) {
Destination32 = (UINT32*)DestinationBuffer;
Source32 = (CONST UINT32*)SourceBuffer;
while (Length >= 4) {
*(Destination32++) = *(Source32++);
Length -= 4;
}
// Finish if there are still some bytes to copy
Destination8 = (UINT8*)Destination32;
Source8 = (CONST UINT8*)Source32;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination32 = (UINT32*)((UINTN)DestinationBuffer + Length);
Source32 = (CONST UINT32*)((UINTN)SourceBuffer + Length);
// Destination32 and Source32 were aligned on a 32-bit boundary
// but if length is not a multiple of 4 bytes then they won't be
// anymore.
Alignment = Length & 0x3;
if (Alignment != 0) {
Destination8 = (UINT8*)Destination32;
Source8 = (CONST UINT8*)Source32;
while (Alignment-- != 0) {
*(--Destination8) = *(--Source8);
--Length;
}
Destination32 = (UINT32*)Destination8;
Source32 = (CONST UINT32*)Source8;
}
while (Length > 0) {
*(--Destination32) = *(--Source32);
Length -= 4;
}
}
} else {
if (SourceBuffer > DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer;
Source8 = (CONST UINT8*)SourceBuffer;
while (Length-- != 0) {
*(Destination8++) = *(Source8++);
}
} else if (SourceBuffer < DestinationBuffer) {
Destination8 = (UINT8*)DestinationBuffer + Length;
Source8 = (CONST UINT8*)SourceBuffer + Length;
while (Length-- != 0) {
*(--Destination8) = *(--Source8);
}
}
}
return DestinationBuffer;
}

84
ArmPkg/Library/BaseMemoryLibStm/AArch64/SetMem.c Normal file
View File

@@ -0,0 +1,84 @@
/** @file
Copyright (c) 2012-2013, ARM Ltd. All rights reserved.<BR>
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 "MemLibInternals.h"
/**
Set Buffer to Value for Size bytes.
@param Buffer Memory to set.
@param Length Number of bytes to set
@param Value Value of the set operation.
@return Buffer
**/
VOID *
EFIAPI
InternalMemSetMem (
OUT VOID *Buffer,
IN UINTN Length,
IN UINT8 Value
)
{
//
// Declare the local variables that actually move the data elements as
// volatile to prevent the optimizer from replacing this function with
// the intrinsic memset()
//
volatile UINT8 *Pointer8;
volatile UINT32 *Pointer32;
volatile UINT64 *Pointer64;
UINT32 Value32;
UINT64 Value64;
if ((((UINTN)Buffer & 0x7) == 0) && (Length >= 8)) {
// Generate the 64bit value
Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;
Value64 = (((UINT64)Value32) << 32) | Value32;
Pointer64 = (UINT64*)Buffer;
while (Length >= 8) {
*(Pointer64++) = Value64;
Length -= 8;
}
// Finish with bytes if needed
Pointer8 = (UINT8*)Pointer64;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
} else if ((((UINTN)Buffer & 0x3) == 0) && (Length >= 4)) {
// Generate the 32bit value
Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;
Pointer32 = (UINT32*)Buffer;
while (Length >= 4) {
*(Pointer32++) = Value32;
Length -= 4;
}
// Finish with bytes if needed
Pointer8 = (UINT8*)Pointer32;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
} else {
Pointer8 = (UINT8*)Buffer;
while (Length-- > 0) {
*(Pointer8++) = Value;
}
}
return Buffer;
}

6
ArmPkg/Library/BaseMemoryLibStm/BaseMemoryLibStm.inf
View File

@@ -7,6 +7,7 @@
#
# Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2010, Apple Inc. All rights reserved.<BR>
# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -28,7 +29,7 @@
#
# VALID_ARCHITECTURES = ARM
# VALID_ARCHITECTURES = ARM AARCH64
#
@@ -54,6 +55,9 @@
Arm/SetMem.asm
Arm/SetMem.S
[Sources.AARCH64]
AArch64/CopyMem.c
AArch64/SetMem.c
[Packages]
MdePkg/MdePkg.dec