ARM Packages: Fixed line endings

This large code change only modifies the line endings to be CRLF to be
compliant with the EDK2 coding convention document.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14088 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2013-01-25 11:28:06 +00:00
parent 5767f22fca
commit 1e57a46299
280 changed files with 48862 additions and 48862 deletions

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@@ -1,76 +1,76 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <PiDxe.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PcdLib.h>
#include <Guid/ArmGlobalVariableHob.h>
UINTN mGlobalVariableBase = 0;
RETURN_STATUS
EFIAPI
ArmPlatformGlobalVariableConstructor (
VOID
)
{
ARM_HOB_GLOBAL_VARIABLE *Hob;
Hob = GetFirstGuidHob (&gArmGlobalVariableGuid);
ASSERT (Hob != NULL);
mGlobalVariableBase = Hob->GlobalVariableBase;
return EFI_SUCCESS;
}
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem (Variable, (VOID*)(mGlobalVariableBase + VariableOffset), VariableSize);
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem ((VOID*)(mGlobalVariableBase + VariableOffset), Variable, VariableSize);
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
return (VOID*)(mGlobalVariableBase + VariableOffset);
}
/** @file
*
* Copyright (c) 2011-2012, 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 <PiDxe.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PcdLib.h>
#include <Guid/ArmGlobalVariableHob.h>
UINTN mGlobalVariableBase = 0;
RETURN_STATUS
EFIAPI
ArmPlatformGlobalVariableConstructor (
VOID
)
{
ARM_HOB_GLOBAL_VARIABLE *Hob;
Hob = GetFirstGuidHob (&gArmGlobalVariableGuid);
ASSERT (Hob != NULL);
mGlobalVariableBase = Hob->GlobalVariableBase;
return EFI_SUCCESS;
}
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem (Variable, (VOID*)(mGlobalVariableBase + VariableOffset), VariableSize);
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem ((VOID*)(mGlobalVariableBase + VariableOffset), Variable, VariableSize);
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
return (VOID*)(mGlobalVariableBase + VariableOffset);
}

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@@ -1,44 +1,44 @@
#/** @file
# Timer library implementation
#
#
# Copyright (c) 2011-2012, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DxeArmPlatformGlobalVariableLib
FILE_GUID = 53fa3cc3-23b7-4ec2-9bfa-30257d7e1135
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformGlobalVariableLib
CONSTRUCTOR = ArmPlatformGlobalVariableConstructor
[Sources.common]
DxeArmPlatformGlobalVariableLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
BaseLib
DebugLib
HobLib
[Guids]
gArmGlobalVariableGuid
[FixedPcd]
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
#/** @file
# Timer library implementation
#
#
# Copyright (c) 2011-2012, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DxeArmPlatformGlobalVariableLib
FILE_GUID = 53fa3cc3-23b7-4ec2-9bfa-30257d7e1135
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformGlobalVariableLib
CONSTRUCTOR = ArmPlatformGlobalVariableConstructor
[Sources.common]
DxeArmPlatformGlobalVariableLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
BaseLib
DebugLib
HobLib
[Guids]
gArmGlobalVariableGuid
[FixedPcd]
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize

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@@ -1,84 +1,84 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
// Declared by ArmPlatformPkg/PrePi Module
extern UINTN mGlobalVariableBase;
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
return (VOID*)(GlobalVariableBase + VariableOffset);
}
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
// Declared by ArmPlatformPkg/PrePi Module
extern UINTN mGlobalVariableBase;
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresStackBase) + PcdGet32 (PcdCPUCorePrimaryStackSize) - PcdGet32 (PcdPeiGlobalVariableSize);
return (VOID*)(GlobalVariableBase + VariableOffset);
}

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@@ -1,40 +1,40 @@
#/** @file
# ArmPlatformGlobalVariableLib library implementation
#
# Copyright (c) 2011-2012, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PeiArmPlatformGlobalVariableLib
FILE_GUID = 3e03daf2-b7b4-45f7-80b2-12aba043391f
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformGlobalVariableLib
[Sources.common]
PeiArmPlatformGlobalVariableLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
BaseLib
DebugLib
PcdLib
[FixedPcd]
gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
#/** @file
# ArmPlatformGlobalVariableLib library implementation
#
# Copyright (c) 2011-2012, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = PeiArmPlatformGlobalVariableLib
FILE_GUID = 3e03daf2-b7b4-45f7-80b2-12aba043391f
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformGlobalVariableLib
[Sources.common]
PeiArmPlatformGlobalVariableLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
BaseLib
DebugLib
PcdLib
[FixedPcd]
gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize

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@@ -1,105 +1,105 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
#define IS_XIP() (((UINT32)PcdGet32 (PcdFdBaseAddress) > (UINT32)(PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize))) || \
((PcdGet32 (PcdFdBaseAddress) + PcdGet32 (PcdFdSize)) < PcdGet32 (PcdSystemMemoryBase)))
// Declared by ArmPlatformPkg/PrePi Module
extern UINTN mGlobalVariableBase;
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
return (VOID*)(GlobalVariableBase + VariableOffset);
}
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
#define IS_XIP() (((UINT32)PcdGet32 (PcdFdBaseAddress) > (UINT32)(PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize))) || \
((PcdGet32 (PcdFdBaseAddress) + PcdGet32 (PcdFdSize)) < PcdGet32 (PcdSystemMemoryBase)))
// Declared by ArmPlatformPkg/PrePi Module
extern UINTN mGlobalVariableBase;
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdPeiGlobalVariableSize));
if (IS_XIP()) {
// In Case of XIP, we expect the Primary Stack at the top of the System Memory
// The size must be 64bit aligned to allow 64bit variable to be aligned
GlobalVariableBase = PcdGet32 (PcdSystemMemoryBase) + PcdGet32 (PcdSystemMemorySize) - ALIGN_VALUE(PcdGet32 (PcdPeiGlobalVariableSize),0x8);
} else {
GlobalVariableBase = mGlobalVariableBase;
}
return (VOID*)(GlobalVariableBase + VariableOffset);
}

View File

@@ -1,81 +1,81 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
return (VOID*)(GlobalVariableBase + VariableOffset);
}
/** @file
*
* Copyright (c) 2011-2012, 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 <Uefi.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PcdLib.h>
#include <Library/DebugLib.h>
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
if (VariableSize == 4) {
*(UINT32*)Variable = ReadUnaligned32 ((CONST UINT32*)(GlobalVariableBase + VariableOffset));
} else if (VariableSize == 8) {
*(UINT64*)Variable = ReadUnaligned64 ((CONST UINT64*)(GlobalVariableBase + VariableOffset));
} else {
CopyMem (Variable, (VOID*)(GlobalVariableBase + VariableOffset), VariableSize);
}
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
if (VariableSize == 4) {
WriteUnaligned32 ((UINT32*)(GlobalVariableBase + VariableOffset), *(UINT32*)Variable);
} else if (VariableSize == 8) {
WriteUnaligned64 ((UINT64*)(GlobalVariableBase + VariableOffset), *(UINT64*)Variable);
} else {
CopyMem ((VOID*)(GlobalVariableBase + VariableOffset), Variable, VariableSize);
}
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
UINTN GlobalVariableBase;
// Ensure the Global Variable Size have been initialized
ASSERT (VariableOffset < PcdGet32 (PcdSecGlobalVariableSize));
GlobalVariableBase = PcdGet32 (PcdCPUCoresSecStackBase) + PcdGet32 (PcdCPUCoreSecPrimaryStackSize) - PcdGet32 (PcdSecGlobalVariableSize);
return (VOID*)(GlobalVariableBase + VariableOffset);
}

View File

@@ -1,164 +1,164 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <Library/ArmLib.h>
#include <Library/ArmPlatformLib.h>
#include <Ppi/ArmMpCoreInfo.h>
ARM_CORE_INFO mArmPlatformNullMpCoreInfoTable[] = {
{
// Cluster 0, Core 0
0x0, 0x0,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 1
0x0, 0x1,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 2
0x0, 0x2,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 3
0x0, 0x3,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
}
};
// This function should be better located into TimerLib implementation
RETURN_STATUS
EFIAPI
TimerConstructor (
VOID
)
{
return EFI_SUCCESS;
}
/**
Return the current Boot Mode
This function returns the boot reason on the platform
**/
EFI_BOOT_MODE
ArmPlatformGetBootMode (
VOID
)
{
return BOOT_WITH_FULL_CONFIGURATION;
}
/**
Initialize controllers that must setup in the normal world
This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei
in the PEI phase.
**/
RETURN_STATUS
ArmPlatformInitialize (
IN UINTN MpId
)
{
if (!IS_PRIMARY_CORE(MpId)) {
return RETURN_SUCCESS;
}
//TODO: Implement me
return RETURN_SUCCESS;
}
/**
Initialize the system (or sometimes called permanent) memory
This memory is generally represented by the DRAM.
**/
VOID
ArmPlatformInitializeSystemMemory (
VOID
)
{
//TODO: Implement me
}
EFI_STATUS
PrePeiCoreGetMpCoreInfo (
OUT UINTN *CoreCount,
OUT ARM_CORE_INFO **ArmCoreTable
)
{
if (ArmIsMpCore()) {
*CoreCount = sizeof(mArmPlatformNullMpCoreInfoTable) / sizeof(ARM_CORE_INFO);
*ArmCoreTable = mArmPlatformNullMpCoreInfoTable;
return EFI_SUCCESS;
} else {
return EFI_UNSUPPORTED;
}
}
// Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the contect of PrePeiCore
EFI_GUID mArmMpCoreInfoPpiGuid = ARM_MP_CORE_INFO_PPI_GUID;
ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
&mArmMpCoreInfoPpiGuid,
&mMpCoreInfoPpi
}
};
VOID
ArmPlatformGetPlatformPpiList (
OUT UINTN *PpiListSize,
OUT EFI_PEI_PPI_DESCRIPTOR **PpiList
)
{
if (ArmIsMpCore()) {
*PpiListSize = sizeof(gPlatformPpiTable);
*PpiList = gPlatformPpiTable;
} else {
*PpiListSize = 0;
*PpiList = NULL;
}
}
/** @file
*
* Copyright (c) 2011-2012, 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 <Library/ArmLib.h>
#include <Library/ArmPlatformLib.h>
#include <Ppi/ArmMpCoreInfo.h>
ARM_CORE_INFO mArmPlatformNullMpCoreInfoTable[] = {
{
// Cluster 0, Core 0
0x0, 0x0,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 1
0x0, 0x1,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 2
0x0, 0x2,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
},
{
// Cluster 0, Core 3
0x0, 0x3,
// MP Core MailBox Set/Get/Clear Addresses and Clear Value
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(EFI_PHYSICAL_ADDRESS)0,
(UINT64)0xFFFFFFFF
}
};
// This function should be better located into TimerLib implementation
RETURN_STATUS
EFIAPI
TimerConstructor (
VOID
)
{
return EFI_SUCCESS;
}
/**
Return the current Boot Mode
This function returns the boot reason on the platform
**/
EFI_BOOT_MODE
ArmPlatformGetBootMode (
VOID
)
{
return BOOT_WITH_FULL_CONFIGURATION;
}
/**
Initialize controllers that must setup in the normal world
This function is called by the ArmPlatformPkg/PrePi or ArmPlatformPkg/PlatformPei
in the PEI phase.
**/
RETURN_STATUS
ArmPlatformInitialize (
IN UINTN MpId
)
{
if (!IS_PRIMARY_CORE(MpId)) {
return RETURN_SUCCESS;
}
//TODO: Implement me
return RETURN_SUCCESS;
}
/**
Initialize the system (or sometimes called permanent) memory
This memory is generally represented by the DRAM.
**/
VOID
ArmPlatformInitializeSystemMemory (
VOID
)
{
//TODO: Implement me
}
EFI_STATUS
PrePeiCoreGetMpCoreInfo (
OUT UINTN *CoreCount,
OUT ARM_CORE_INFO **ArmCoreTable
)
{
if (ArmIsMpCore()) {
*CoreCount = sizeof(mArmPlatformNullMpCoreInfoTable) / sizeof(ARM_CORE_INFO);
*ArmCoreTable = mArmPlatformNullMpCoreInfoTable;
return EFI_SUCCESS;
} else {
return EFI_UNSUPPORTED;
}
}
// Needs to be declared in the file. Otherwise gArmMpCoreInfoPpiGuid is undefined in the contect of PrePeiCore
EFI_GUID mArmMpCoreInfoPpiGuid = ARM_MP_CORE_INFO_PPI_GUID;
ARM_MP_CORE_INFO_PPI mMpCoreInfoPpi = { PrePeiCoreGetMpCoreInfo };
EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = {
{
EFI_PEI_PPI_DESCRIPTOR_PPI,
&mArmMpCoreInfoPpiGuid,
&mMpCoreInfoPpi
}
};
VOID
ArmPlatformGetPlatformPpiList (
OUT UINTN *PpiListSize,
OUT EFI_PEI_PPI_DESCRIPTOR **PpiList
)
{
if (ArmIsMpCore()) {
*PpiListSize = sizeof(gPlatformPpiTable);
*PpiList = gPlatformPpiTable;
} else {
*PpiListSize = 0;
*PpiList = NULL;
}
}

View File

@@ -1,74 +1,74 @@
/** @file
*
* Copyright (c) 2011-2012, 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 <Library/ArmPlatformLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
/**
Initialize the Secure peripherals and memory regions
If Trustzone is supported by your platform then this function makes the required initialization
of the secure peripherals and memory regions.
**/
VOID
ArmPlatformSecTrustzoneInit (
IN UINTN MpId
)
{
// Secondary cores might have to set the Secure SGIs into the GICD_IGROUPR0
if (!IS_PRIMARY_CORE(MpId)) {
return;
}
ASSERT(FALSE);
}
/**
Initialize controllers that must setup at the early stage
Some peripherals must be initialized in Secure World.
For example, some L2x0 requires to be initialized in Secure World
**/
RETURN_STATUS
ArmPlatformSecInitialize (
IN UINTN MpId
)
{
// If it is not the primary core then there is nothing to do
if (!IS_PRIMARY_CORE(MpId)) {
return RETURN_SUCCESS;
}
// Do nothing yet
return RETURN_SUCCESS;
}
/**
Call before jumping to Normal World
This function allows the firmware platform to do extra actions before
jumping to the Normal World
**/
VOID
ArmPlatformSecExtraAction (
IN UINTN MpId,
OUT UINTN* JumpAddress
)
{
*JumpAddress = PcdGet32(PcdFvBaseAddress);
}
/** @file
*
* Copyright (c) 2011-2012, 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 <Library/ArmPlatformLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
/**
Initialize the Secure peripherals and memory regions
If Trustzone is supported by your platform then this function makes the required initialization
of the secure peripherals and memory regions.
**/
VOID
ArmPlatformSecTrustzoneInit (
IN UINTN MpId
)
{
// Secondary cores might have to set the Secure SGIs into the GICD_IGROUPR0
if (!IS_PRIMARY_CORE(MpId)) {
return;
}
ASSERT(FALSE);
}
/**
Initialize controllers that must setup at the early stage
Some peripherals must be initialized in Secure World.
For example, some L2x0 requires to be initialized in Secure World
**/
RETURN_STATUS
ArmPlatformSecInitialize (
IN UINTN MpId
)
{
// If it is not the primary core then there is nothing to do
if (!IS_PRIMARY_CORE(MpId)) {
return RETURN_SUCCESS;
}
// Do nothing yet
return RETURN_SUCCESS;
}
/**
Call before jumping to Normal World
This function allows the firmware platform to do extra actions before
jumping to the Normal World
**/
VOID
ArmPlatformSecExtraAction (
IN UINTN MpId,
OUT UINTN* JumpAddress
)
{
*JumpAddress = PcdGet32(PcdFvBaseAddress);
}

View File

@@ -1,55 +1,55 @@
#/* @file
# Copyright (c) 2011-2012, 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.
#
#*/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DebugSecExtraActionLib
FILE_GUID = 8fff7a60-a6f8-11e0-990a-0002a5d5c51b
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformSecExtraActionLib
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = ARM
#
[Sources.common]
DebugSecExtraActionLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
DebugLib
PcdLib
ArmGicLib
PrintLib
SerialPortLib
[FeaturePcd]
gArmPlatformTokenSpaceGuid.PcdStandalone
gArmPlatformTokenSpaceGuid.PcdSystemMemoryInitializeInSec
[FixedPcd]
gArmTokenSpaceGuid.PcdFvBaseAddress
gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
gArmTokenSpaceGuid.PcdArmPrimaryCore
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
gArmTokenSpaceGuid.PcdGicSgiIntId
#/* @file
# Copyright (c) 2011-2012, 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.
#
#*/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DebugSecExtraActionLib
FILE_GUID = 8fff7a60-a6f8-11e0-990a-0002a5d5c51b
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ArmPlatformSecExtraActionLib
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = ARM
#
[Sources.common]
DebugSecExtraActionLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[LibraryClasses]
DebugLib
PcdLib
ArmGicLib
PrintLib
SerialPortLib
[FeaturePcd]
gArmPlatformTokenSpaceGuid.PcdStandalone
gArmPlatformTokenSpaceGuid.PcdSystemMemoryInitializeInSec
[FixedPcd]
gArmTokenSpaceGuid.PcdFvBaseAddress
gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
gArmTokenSpaceGuid.PcdArmPrimaryCore
gArmTokenSpaceGuid.PcdGicDistributorBase
gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
gArmTokenSpaceGuid.PcdGicSgiIntId

View File

@@ -1,184 +1,184 @@
/** @file
Serial I/O Port library functions with no library constructor/destructor
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2012, 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 <Base.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/SerialPortLib.h>
#include <Library/SerialPortExtLib.h>
#include <Drivers/PL011Uart.h>
/**
Programmed hardware of Serial port.
@return Always return RETURN_UNSUPPORTED.
**/
RETURN_STATUS
EFIAPI
SerialPortInitialize (
VOID
)
{
return PL011UartInitializePort (
(UINTN)PcdGet64 (PcdSerialRegisterBase),
(UINTN)PcdGet64 (PcdUartDefaultBaudRate),
0, // Use the default value for Fifo depth
(EFI_PARITY_TYPE)PcdGet8 (PcdUartDefaultParity),
PcdGet8 (PcdUartDefaultDataBits),
(EFI_STOP_BITS_TYPE) PcdGet8 (PcdUartDefaultStopBits));
}
/**
Write data to serial device.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Write data failed.
@retval !0 Actual number of bytes written to serial device.
**/
UINTN
EFIAPI
SerialPortWrite (
IN UINT8 *Buffer,
IN UINTN NumberOfBytes
)
{
return PL011UartWrite ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer, NumberOfBytes);
}
/**
Read data from serial device and save the data in buffer.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Read data failed.
@retval !0 Actual number of bytes read from serial device.
**/
UINTN
EFIAPI
SerialPortRead (
OUT UINT8 *Buffer,
IN UINTN NumberOfBytes
)
{
return PL011UartRead ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer, NumberOfBytes);
}
/**
Check to see if any data is available to be read from the debug device.
@retval EFI_SUCCESS At least one byte of data is available to be read
@retval EFI_NOT_READY No data is available to be read
@retval EFI_DEVICE_ERROR The serial device is not functioning properly
**/
BOOLEAN
EFIAPI
SerialPortPoll (
VOID
)
{
return PL011UartPoll ((UINTN)PcdGet64 (PcdSerialRegisterBase));
}
/**
Set new attributes to PL011.
@param BaudRate The baud rate of the serial device. If the baud rate is not supported,
the speed will be reduced down to the nearest supported one and the
variable's value will be updated accordingly.
@param ReceiveFifoDepth The number of characters the device will buffer on input. If the specified
value is not supported, the variable's value will be reduced down to the
nearest supported one.
@param Timeout If applicable, the number of microseconds the device will wait
before timing out a Read or a Write operation.
@param Parity If applicable, this is the EFI_PARITY_TYPE that is computer or checked
as each character is transmitted or received. If the device does not
support parity, the value is the default parity value.
@param DataBits The number of data bits in each character
@param StopBits If applicable, the EFI_STOP_BITS_TYPE number of stop bits per character.
If the device does not support stop bits, the value is the default stop
bit value.
@retval EFI_SUCCESS All attributes were set correctly on the serial device.
@retval EFI_INVALID_PARAMETERS One or more of the attributes has an unsupported value.
**/
RETURN_STATUS
EFIAPI
SerialPortSetAttributes (
IN UINT64 BaudRate,
IN UINT32 ReceiveFifoDepth,
IN UINT32 Timeout,
IN EFI_PARITY_TYPE Parity,
IN UINT8 DataBits,
IN EFI_STOP_BITS_TYPE StopBits
)
{
return PL011UartInitializePort (
(UINTN)PcdGet64 (PcdSerialRegisterBase),
BaudRate,
ReceiveFifoDepth,
Parity,
DataBits,
StopBits);
}
/**
Set the serial device control bits.
@param Control Control bits which are to be set on the serial device.
@retval EFI_SUCCESS The new control bits were set on the serial device.
@retval EFI_UNSUPPORTED The serial device does not support this operation.
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
**/
RETURN_STATUS
EFIAPI
SerialPortSetControl (
IN UINT32 Control
)
{
return PL011UartSetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
}
/**
Get the serial device control bits.
@param Control Control signals read from the serial device.
@retval EFI_SUCCESS The control bits were read from the serial device.
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
**/
RETURN_STATUS
EFIAPI
SerialPortGetControl (
OUT UINT32 *Control
)
{
return PL011UartGetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
}
/** @file
Serial I/O Port library functions with no library constructor/destructor
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2012, 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 <Base.h>
#include <Library/IoLib.h>
#include <Library/PcdLib.h>
#include <Library/SerialPortLib.h>
#include <Library/SerialPortExtLib.h>
#include <Drivers/PL011Uart.h>
/**
Programmed hardware of Serial port.
@return Always return RETURN_UNSUPPORTED.
**/
RETURN_STATUS
EFIAPI
SerialPortInitialize (
VOID
)
{
return PL011UartInitializePort (
(UINTN)PcdGet64 (PcdSerialRegisterBase),
(UINTN)PcdGet64 (PcdUartDefaultBaudRate),
0, // Use the default value for Fifo depth
(EFI_PARITY_TYPE)PcdGet8 (PcdUartDefaultParity),
PcdGet8 (PcdUartDefaultDataBits),
(EFI_STOP_BITS_TYPE) PcdGet8 (PcdUartDefaultStopBits));
}
/**
Write data to serial device.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Write data failed.
@retval !0 Actual number of bytes written to serial device.
**/
UINTN
EFIAPI
SerialPortWrite (
IN UINT8 *Buffer,
IN UINTN NumberOfBytes
)
{
return PL011UartWrite ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer, NumberOfBytes);
}
/**
Read data from serial device and save the data in buffer.
@param Buffer Point of data buffer which need to be written.
@param NumberOfBytes Number of output bytes which are cached in Buffer.
@retval 0 Read data failed.
@retval !0 Actual number of bytes read from serial device.
**/
UINTN
EFIAPI
SerialPortRead (
OUT UINT8 *Buffer,
IN UINTN NumberOfBytes
)
{
return PL011UartRead ((UINTN)PcdGet64 (PcdSerialRegisterBase), Buffer, NumberOfBytes);
}
/**
Check to see if any data is available to be read from the debug device.
@retval EFI_SUCCESS At least one byte of data is available to be read
@retval EFI_NOT_READY No data is available to be read
@retval EFI_DEVICE_ERROR The serial device is not functioning properly
**/
BOOLEAN
EFIAPI
SerialPortPoll (
VOID
)
{
return PL011UartPoll ((UINTN)PcdGet64 (PcdSerialRegisterBase));
}
/**
Set new attributes to PL011.
@param BaudRate The baud rate of the serial device. If the baud rate is not supported,
the speed will be reduced down to the nearest supported one and the
variable's value will be updated accordingly.
@param ReceiveFifoDepth The number of characters the device will buffer on input. If the specified
value is not supported, the variable's value will be reduced down to the
nearest supported one.
@param Timeout If applicable, the number of microseconds the device will wait
before timing out a Read or a Write operation.
@param Parity If applicable, this is the EFI_PARITY_TYPE that is computer or checked
as each character is transmitted or received. If the device does not
support parity, the value is the default parity value.
@param DataBits The number of data bits in each character
@param StopBits If applicable, the EFI_STOP_BITS_TYPE number of stop bits per character.
If the device does not support stop bits, the value is the default stop
bit value.
@retval EFI_SUCCESS All attributes were set correctly on the serial device.
@retval EFI_INVALID_PARAMETERS One or more of the attributes has an unsupported value.
**/
RETURN_STATUS
EFIAPI
SerialPortSetAttributes (
IN UINT64 BaudRate,
IN UINT32 ReceiveFifoDepth,
IN UINT32 Timeout,
IN EFI_PARITY_TYPE Parity,
IN UINT8 DataBits,
IN EFI_STOP_BITS_TYPE StopBits
)
{
return PL011UartInitializePort (
(UINTN)PcdGet64 (PcdSerialRegisterBase),
BaudRate,
ReceiveFifoDepth,
Parity,
DataBits,
StopBits);
}
/**
Set the serial device control bits.
@param Control Control bits which are to be set on the serial device.
@retval EFI_SUCCESS The new control bits were set on the serial device.
@retval EFI_UNSUPPORTED The serial device does not support this operation.
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
**/
RETURN_STATUS
EFIAPI
SerialPortSetControl (
IN UINT32 Control
)
{
return PL011UartSetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
}
/**
Get the serial device control bits.
@param Control Control signals read from the serial device.
@retval EFI_SUCCESS The control bits were read from the serial device.
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
**/
RETURN_STATUS
EFIAPI
SerialPortGetControl (
OUT UINT32 *Control
)
{
return PL011UartGetControl((UINTN)PcdGet64 (PcdSerialRegisterBase), Control);
}

View File

@@ -1,260 +1,260 @@
/** @file
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011, 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 <Base.h>
#include <Library/BaseLib.h>
#include <Library/TimerLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/IoLib.h>
#include <Drivers/SP804Timer.h>
#define SP804_TIMER_METRONOME_BASE ((UINTN)PcdGet32 (PcdSP804TimerMetronomeBase))
#define SP804_TIMER_PERFORMANCE_BASE ((UINTN)PcdGet32 (PcdSP804TimerPerformanceBase))
// Setup SP810's Timer2 for managing delay functions. And Timer3 for Performance counter
// Note: ArmVE's Timer0 and Timer1 are used by TimerDxe.
RETURN_STATUS
EFIAPI
TimerConstructor (
VOID
)
{
// Check if the Metronome Timer is already initialized
if (MmioRead32(SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG) & SP804_TIMER_CTRL_ENABLE) {
return RETURN_SUCCESS;
} else {
// Configure the Metronome Timer for free running operation, 32 bits, no prescaler, and interrupt disabled
MmioWrite32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_32BIT | SP804_PRESCALE_DIV_1);
// Start the Metronome Timer ticking
MmioOr32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ENABLE);
}
// Check if the Performance Timer is already initialized
if (MmioRead32(SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG) & SP804_TIMER_CTRL_ENABLE) {
return RETURN_SUCCESS;
} else {
// Configure the Performance timer for free running operation, 32 bits, no prescaler, interrupt disabled
MmioWrite32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_32BIT | SP804_PRESCALE_DIV_1);
// Start the Performance Timer ticking
MmioOr32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ENABLE);
}
return RETURN_SUCCESS;
}
/**
Stalls the CPU for at least the given number of microseconds.
Stalls the CPU for the number of microseconds specified by MicroSeconds.
The hardware timer is 32 bits.
The maximum possible delay is (0xFFFFFFFF / TimerFrequencyMHz), i.e. ([32bits] / FreqInMHz)
For example:
+----------------+------------+----------+----------+
| TimerFrequency | MaxDelay | MaxDelay | MaxDelay |
| (MHz) | (us) | (s) | (min) |
+----------------+------------+----------+----------+
| 1 | 0xFFFFFFFF | 4294 | 71.5 |
| 5 | 0x33333333 | 859 | 14.3 |
| 10 | 0x19999999 | 429 | 7.2 |
| 50 | 0x051EB851 | 86 | 1.4 |
+----------------+------------+----------+----------+
If it becomes necessary to support higher delays, then consider using the
real time clock.
During this delay, the cpu is not yielded to any other process, with one exception:
events that are triggered off a timer and which execute at a higher TPL than
this function. These events may call MicroSecondDelay (or NanoSecondDelay) to
fulfil their own needs.
Therefore, this function must be re-entrant, as it may be interrupted and re-started.
@param MicroSeconds The minimum number of microseconds to delay.
@return The value of MicroSeconds inputted.
**/
UINTN
EFIAPI
MicroSecondDelay (
IN UINTN MicroSeconds
)
{
UINT64 DelayTicks64; // Convert from microseconds to timer ticks, more bits to detect over-range conditions.
UINTN DelayTicks; // Convert from microseconds to timer ticks, native size for general calculations.
UINTN StartTicks; // Timer value snapshot at the start of the delay
UINTN TargetTicks; // Timer value to signal the end of the delay
UINTN CurrentTicks; // Current value of the 64-bit timer value at any given moment
// If we snapshot the timer at the start of the delay function then we minimise unaccounted overheads.
StartTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
// We are operating at the limit of 32bits. For the range checking work in 64 bits to avoid overflows.
DelayTicks64 = MultU64x32((UINT64)MicroSeconds, PcdGet32(PcdSP804TimerFrequencyInMHz));
// We are limited to 32 bits.
// If the specified delay is exactly equal to the max range of the timer,
// then the start will be equal to the stop plus one timer overflow (wrap-around).
// To avoid having to check for that, reduce the maximum acceptable range by 1 tick,
// i.e. reject delays equal or greater than the max range of the timer.
if (DelayTicks64 >= (UINT64)SP804_MAX_TICKS) {
DEBUG((EFI_D_ERROR,"MicroSecondDelay: ERROR: MicroSeconds=%d exceed SP804 count range. Max MicroSeconds=%d\n",
MicroSeconds,
((UINTN)SP804_MAX_TICKS/PcdGet32(PcdSP804TimerFrequencyInMHz))));
}
ASSERT(DelayTicks64 < (UINT64)SP804_MAX_TICKS);
// From now on do calculations only in native bit size.
DelayTicks = (UINTN)DelayTicks64;
// Calculate the target value of the timer.
//Note: SP804 timer is counting down
if (StartTicks >= DelayTicks) {
// In this case we do not expect a wrap-around of the timer to occur.
// CurrentTicks must be less than StartTicks and higher than TargetTicks.
// If this is not the case, then the delay has been reached and may even have been exceeded if this
// function was suspended by a higher priority interrupt.
TargetTicks = StartTicks - DelayTicks;
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while ((CurrentTicks > TargetTicks) && (CurrentTicks <= StartTicks));
} else {
// In this case TargetTicks is larger than StartTicks.
// This means we expect a wrap-around of the timer to occur and we must wait for it.
// Before the wrap-around, CurrentTicks must be less than StartTicks and less than TargetTicks.
// After the wrap-around, CurrentTicks must be larger than StartTicks and larger than TargetTicks.
// If this is not the case, then the delay has been reached and may even have been exceeded if this
// function was suspended by a higher priority interrupt.
// The order of operations is essential to avoid arithmetic overflow problems
TargetTicks = ((UINTN)SP804_MAX_TICKS - DelayTicks) + StartTicks;
// First wait for the wrap-around to occur
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while (CurrentTicks <= StartTicks);
// Then wait for the target
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while (CurrentTicks > TargetTicks);
}
return MicroSeconds;
}
/**
Stalls the CPU for at least the given number of nanoseconds.
Stalls the CPU for the number of nanoseconds specified by NanoSeconds.
When the timer frequency is 1MHz, each tick corresponds to 1 microsecond.
Therefore, the nanosecond delay will be rounded up to the nearest 1 microsecond.
@param NanoSeconds The minimum number of nanoseconds to delay.
@return The value of NanoSeconds inputted.
**/
UINTN
EFIAPI
NanoSecondDelay (
IN UINTN NanoSeconds
)
{
UINTN MicroSeconds;
// Round up to 1us Tick Number
MicroSeconds = NanoSeconds / 1000;
MicroSeconds += ((NanoSeconds % 1000) == 0) ? 0 : 1;
MicroSecondDelay (MicroSeconds);
return NanoSeconds;
}
/**
Retrieves the current value of a 64-bit free running performance counter.
The counter can either count up by 1 or count down by 1. If the physical
performance counter counts by a larger increment, then the counter values
must be translated. The properties of the counter can be retrieved from
GetPerformanceCounterProperties().
@return The current value of the free running performance counter.
**/
UINT64
EFIAPI
GetPerformanceCounter (
VOID
)
{
// Free running 64-bit/32-bit counter is needed here.
// Don't think we need this to boot, just to do performance profile
UINT64 Value;
Value = MmioRead32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CURRENT_REG);
return Value;
}
/**
Retrieves the 64-bit frequency in Hz and the range of performance counter
values.
If StartValue is not NULL, then the value that the performance counter starts
with immediately after is it rolls over is returned in StartValue. If
EndValue is not NULL, then the value that the performance counter end with
immediately before it rolls over is returned in EndValue. The 64-bit
frequency of the performance counter in Hz is always returned. If StartValue
is less than EndValue, then the performance counter counts up. If StartValue
is greater than EndValue, then the performance counter counts down. For
example, a 64-bit free running counter that counts up would have a StartValue
of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter
that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0.
@param StartValue The value the performance counter starts with when it
rolls over.
@param EndValue The value that the performance counter ends with before
it rolls over.
@return The frequency in Hz.
**/
UINT64
EFIAPI
GetPerformanceCounterProperties (
OUT UINT64 *StartValue, OPTIONAL
OUT UINT64 *EndValue OPTIONAL
)
{
if (StartValue != NULL) {
// Timer starts with the reload value
*StartValue = 0xFFFFFFFF;
}
if (EndValue != NULL) {
// Timer counts down to 0x0
*EndValue = (UINT64)0ULL;
}
return PcdGet64 (PcdEmbeddedPerformanceCounterFrequencyInHz);
}
/** @file
Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011, 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 <Base.h>
#include <Library/BaseLib.h>
#include <Library/TimerLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/IoLib.h>
#include <Drivers/SP804Timer.h>
#define SP804_TIMER_METRONOME_BASE ((UINTN)PcdGet32 (PcdSP804TimerMetronomeBase))
#define SP804_TIMER_PERFORMANCE_BASE ((UINTN)PcdGet32 (PcdSP804TimerPerformanceBase))
// Setup SP810's Timer2 for managing delay functions. And Timer3 for Performance counter
// Note: ArmVE's Timer0 and Timer1 are used by TimerDxe.
RETURN_STATUS
EFIAPI
TimerConstructor (
VOID
)
{
// Check if the Metronome Timer is already initialized
if (MmioRead32(SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG) & SP804_TIMER_CTRL_ENABLE) {
return RETURN_SUCCESS;
} else {
// Configure the Metronome Timer for free running operation, 32 bits, no prescaler, and interrupt disabled
MmioWrite32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_32BIT | SP804_PRESCALE_DIV_1);
// Start the Metronome Timer ticking
MmioOr32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ENABLE);
}
// Check if the Performance Timer is already initialized
if (MmioRead32(SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG) & SP804_TIMER_CTRL_ENABLE) {
return RETURN_SUCCESS;
} else {
// Configure the Performance timer for free running operation, 32 bits, no prescaler, interrupt disabled
MmioWrite32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_32BIT | SP804_PRESCALE_DIV_1);
// Start the Performance Timer ticking
MmioOr32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CONTROL_REG, SP804_TIMER_CTRL_ENABLE);
}
return RETURN_SUCCESS;
}
/**
Stalls the CPU for at least the given number of microseconds.
Stalls the CPU for the number of microseconds specified by MicroSeconds.
The hardware timer is 32 bits.
The maximum possible delay is (0xFFFFFFFF / TimerFrequencyMHz), i.e. ([32bits] / FreqInMHz)
For example:
+----------------+------------+----------+----------+
| TimerFrequency | MaxDelay | MaxDelay | MaxDelay |
| (MHz) | (us) | (s) | (min) |
+----------------+------------+----------+----------+
| 1 | 0xFFFFFFFF | 4294 | 71.5 |
| 5 | 0x33333333 | 859 | 14.3 |
| 10 | 0x19999999 | 429 | 7.2 |
| 50 | 0x051EB851 | 86 | 1.4 |
+----------------+------------+----------+----------+
If it becomes necessary to support higher delays, then consider using the
real time clock.
During this delay, the cpu is not yielded to any other process, with one exception:
events that are triggered off a timer and which execute at a higher TPL than
this function. These events may call MicroSecondDelay (or NanoSecondDelay) to
fulfil their own needs.
Therefore, this function must be re-entrant, as it may be interrupted and re-started.
@param MicroSeconds The minimum number of microseconds to delay.
@return The value of MicroSeconds inputted.
**/
UINTN
EFIAPI
MicroSecondDelay (
IN UINTN MicroSeconds
)
{
UINT64 DelayTicks64; // Convert from microseconds to timer ticks, more bits to detect over-range conditions.
UINTN DelayTicks; // Convert from microseconds to timer ticks, native size for general calculations.
UINTN StartTicks; // Timer value snapshot at the start of the delay
UINTN TargetTicks; // Timer value to signal the end of the delay
UINTN CurrentTicks; // Current value of the 64-bit timer value at any given moment
// If we snapshot the timer at the start of the delay function then we minimise unaccounted overheads.
StartTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
// We are operating at the limit of 32bits. For the range checking work in 64 bits to avoid overflows.
DelayTicks64 = MultU64x32((UINT64)MicroSeconds, PcdGet32(PcdSP804TimerFrequencyInMHz));
// We are limited to 32 bits.
// If the specified delay is exactly equal to the max range of the timer,
// then the start will be equal to the stop plus one timer overflow (wrap-around).
// To avoid having to check for that, reduce the maximum acceptable range by 1 tick,
// i.e. reject delays equal or greater than the max range of the timer.
if (DelayTicks64 >= (UINT64)SP804_MAX_TICKS) {
DEBUG((EFI_D_ERROR,"MicroSecondDelay: ERROR: MicroSeconds=%d exceed SP804 count range. Max MicroSeconds=%d\n",
MicroSeconds,
((UINTN)SP804_MAX_TICKS/PcdGet32(PcdSP804TimerFrequencyInMHz))));
}
ASSERT(DelayTicks64 < (UINT64)SP804_MAX_TICKS);
// From now on do calculations only in native bit size.
DelayTicks = (UINTN)DelayTicks64;
// Calculate the target value of the timer.
//Note: SP804 timer is counting down
if (StartTicks >= DelayTicks) {
// In this case we do not expect a wrap-around of the timer to occur.
// CurrentTicks must be less than StartTicks and higher than TargetTicks.
// If this is not the case, then the delay has been reached and may even have been exceeded if this
// function was suspended by a higher priority interrupt.
TargetTicks = StartTicks - DelayTicks;
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while ((CurrentTicks > TargetTicks) && (CurrentTicks <= StartTicks));
} else {
// In this case TargetTicks is larger than StartTicks.
// This means we expect a wrap-around of the timer to occur and we must wait for it.
// Before the wrap-around, CurrentTicks must be less than StartTicks and less than TargetTicks.
// After the wrap-around, CurrentTicks must be larger than StartTicks and larger than TargetTicks.
// If this is not the case, then the delay has been reached and may even have been exceeded if this
// function was suspended by a higher priority interrupt.
// The order of operations is essential to avoid arithmetic overflow problems
TargetTicks = ((UINTN)SP804_MAX_TICKS - DelayTicks) + StartTicks;
// First wait for the wrap-around to occur
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while (CurrentTicks <= StartTicks);
// Then wait for the target
do {
CurrentTicks = MmioRead32 (SP804_TIMER_METRONOME_BASE + SP804_TIMER_CURRENT_REG);
} while (CurrentTicks > TargetTicks);
}
return MicroSeconds;
}
/**
Stalls the CPU for at least the given number of nanoseconds.
Stalls the CPU for the number of nanoseconds specified by NanoSeconds.
When the timer frequency is 1MHz, each tick corresponds to 1 microsecond.
Therefore, the nanosecond delay will be rounded up to the nearest 1 microsecond.
@param NanoSeconds The minimum number of nanoseconds to delay.
@return The value of NanoSeconds inputted.
**/
UINTN
EFIAPI
NanoSecondDelay (
IN UINTN NanoSeconds
)
{
UINTN MicroSeconds;
// Round up to 1us Tick Number
MicroSeconds = NanoSeconds / 1000;
MicroSeconds += ((NanoSeconds % 1000) == 0) ? 0 : 1;
MicroSecondDelay (MicroSeconds);
return NanoSeconds;
}
/**
Retrieves the current value of a 64-bit free running performance counter.
The counter can either count up by 1 or count down by 1. If the physical
performance counter counts by a larger increment, then the counter values
must be translated. The properties of the counter can be retrieved from
GetPerformanceCounterProperties().
@return The current value of the free running performance counter.
**/
UINT64
EFIAPI
GetPerformanceCounter (
VOID
)
{
// Free running 64-bit/32-bit counter is needed here.
// Don't think we need this to boot, just to do performance profile
UINT64 Value;
Value = MmioRead32 (SP804_TIMER_PERFORMANCE_BASE + SP804_TIMER_CURRENT_REG);
return Value;
}
/**
Retrieves the 64-bit frequency in Hz and the range of performance counter
values.
If StartValue is not NULL, then the value that the performance counter starts
with immediately after is it rolls over is returned in StartValue. If
EndValue is not NULL, then the value that the performance counter end with
immediately before it rolls over is returned in EndValue. The 64-bit
frequency of the performance counter in Hz is always returned. If StartValue
is less than EndValue, then the performance counter counts up. If StartValue
is greater than EndValue, then the performance counter counts down. For
example, a 64-bit free running counter that counts up would have a StartValue
of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter
that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0.
@param StartValue The value the performance counter starts with when it
rolls over.
@param EndValue The value that the performance counter ends with before
it rolls over.
@return The frequency in Hz.
**/
UINT64
EFIAPI
GetPerformanceCounterProperties (
OUT UINT64 *StartValue, OPTIONAL
OUT UINT64 *EndValue OPTIONAL
)
{
if (StartValue != NULL) {
// Timer starts with the reload value
*StartValue = 0xFFFFFFFF;
}
if (EndValue != NULL) {
// Timer counts down to 0x0
*EndValue = (UINT64)0ULL;
}
return PcdGet64 (PcdEmbeddedPerformanceCounterFrequencyInHz);
}

View File

@@ -1,44 +1,44 @@
#/** @file
# Timer library implementation
#
#
# Copyright (c) 2011, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = SP804TimerLib
FILE_GUID = 09cefa99-0d07-487f-a651-fb44f094b1c7
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = TimerLib
CONSTRUCTOR = TimerConstructor
[Sources.common]
SP804TimerLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
EmbeddedPkg/EmbeddedPkg.dec
[LibraryClasses]
DebugLib
IoLib
BaseLib
[Pcd]
gArmPlatformTokenSpaceGuid.PcdSP804TimerFrequencyInMHz
gArmPlatformTokenSpaceGuid.PcdSP804TimerPerformanceBase
gArmPlatformTokenSpaceGuid.PcdSP804TimerMetronomeBase
gEmbeddedTokenSpaceGuid.PcdEmbeddedPerformanceCounterFrequencyInHz
#/** @file
# Timer library implementation
#
#
# Copyright (c) 2011, 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.
#
#**/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = SP804TimerLib
FILE_GUID = 09cefa99-0d07-487f-a651-fb44f094b1c7
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = TimerLib
CONSTRUCTOR = TimerConstructor
[Sources.common]
SP804TimerLib.c
[Packages]
MdePkg/MdePkg.dec
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
EmbeddedPkg/EmbeddedPkg.dec
[LibraryClasses]
DebugLib
IoLib
BaseLib
[Pcd]
gArmPlatformTokenSpaceGuid.PcdSP804TimerFrequencyInMHz
gArmPlatformTokenSpaceGuid.PcdSP804TimerPerformanceBase
gArmPlatformTokenSpaceGuid.PcdSP804TimerMetronomeBase
gEmbeddedTokenSpaceGuid.PcdEmbeddedPerformanceCounterFrequencyInHz