diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-28 11:01:36 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-28 11:01:36 +0000 |
| commit | 17839a45b8748b88048774e2daefba4d0331678e (patch) | |
| tree | c5d49d910ca2c9127060c048907ea4a648e88134 /ArmPlatformPkg/Library | |
| parent | 7d49ced0cf64fbb3abf6b4d97dac4806bd1d9ee6 (diff) | |
| download | edk2-platforms-17839a45b8748b88048774e2daefba4d0331678e.tar.xz | |
ArmPlatformPkg/ArmPlatformStackLib: Introduced helper library to initialize stacks
The new functions are:
- ArmPlatformStackSet(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
- ArmPlatformStackSetPrimary(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
- ArmPlatformStackSetSecondary(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
The stack topology can be changed by implementing a new ArmPlatformStackLib
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13774 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/Library')
3 files changed, 257 insertions, 0 deletions
diff --git a/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.S b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.S new file mode 100644 index 0000000000..94660c97fe --- /dev/null +++ b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.S @@ -0,0 +1,106 @@ +//
+// Copyright (c) 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 <AsmMacroIoLib.h>
+#include <Base.h>
+#include <AutoGen.h>
+
+.text
+.align 3
+
+GCC_ASM_EXPORT(ArmPlatformStackSet)
+GCC_ASM_EXPORT(ArmPlatformStackSetPrimary)
+GCC_ASM_EXPORT(ArmPlatformStackSetSecondary)
+
+GCC_ASM_IMPORT(ArmPlatformGetCorePosition)
+
+GCC_ASM_IMPORT(gPcd_FixedAtBuild_PcdCoreCount)
+GCC_ASM_IMPORT(_gPcd_FixedAtBuild_PcdArmPrimaryCore)
+
+//VOID
+//ArmPlatformStackSet (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ASM_PFX(ArmPlatformStackSet):
+ // Identify Stack
+ // Mask for ClusterId|CoreId
+ LoadConstantToReg (0xFFFF, r4)
+ and r1, r1, r4
+ // Is it the Primary Core ?
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r4)
+ ldr r4, [r4]
+ cmp r1, r4
+ beq ASM_PFX(ArmPlatformStackSetPrimary)
+ bne ASM_PFX(ArmPlatformStackSetSecondary)
+
+//VOID
+//ArmPlatformStackSetPrimary (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ASM_PFX(ArmPlatformStackSetPrimary):
+ mov r4, lr
+
+ // Add stack of primary stack to StackBase
+ add r0, r0, r2
+
+ // Compute SecondaryCoresCount * SecondaryCoreStackSize
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdCoreCount, r1)
+ ldr r1, [r1]
+ sub r1, #1
+ mul r3, r3, r1
+
+ // Set Primary Stack ((StackBase + PrimaryStackSize) + (SecondaryCoresCount * SecondaryCoreStackSize))
+ add sp, r0, r3
+
+ bx r4
+
+//VOID
+//ArmPlatformStackSetSecondary (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ASM_PFX(ArmPlatformStackSetSecondary):
+ mov r4, lr
+ mov sp, r0
+
+ // Get Core Position
+ mov r0, r1
+ bl ASM_PFX(ArmPlatformGetCorePosition)
+ mov r5, r0
+
+ // Get Primary Core Position
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
+ ldr r0, [r0]
+ bl ASM_PFX(ArmPlatformGetCorePosition)
+
+ // Get Secondary Core Position. We should get consecutive secondary stack number from 1...(CoreCount-1)
+ cmp r5, r0
+ subhi r5, r5, #1
+ add r5, r5, #1
+
+ // Compute top of the secondary stack
+ mul r3, r3, r5
+
+ // Set stack
+ add sp, sp, r3
+
+ bx r4
+
diff --git a/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.asm b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.asm new file mode 100644 index 0000000000..db92023922 --- /dev/null +++ b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.asm @@ -0,0 +1,112 @@ +//
+// Copyright (c) 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 <AsmMacroIoLib.h>
+#include <Base.h>
+#include <AutoGen.h>
+
+ INCLUDE AsmMacroIoLib.inc
+
+ EXPORT ArmPlatformStackSet
+ EXPORT ArmPlatformStackSetPrimary
+ EXPORT ArmPlatformStackSetSecondary
+
+ IMPORT ArmPlatformGetCorePosition
+
+ IMPORT _gPcd_FixedAtBuild_PcdCoreCount
+ IMPORT _gPcd_FixedAtBuild_PcdArmPrimaryCore
+
+ PRESERVE8
+ AREA ArmPlatformStackLib, CODE, READONLY
+
+//VOID
+//ArmPlatformStackSet (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ArmPlatformStackSet FUNCTION
+ // Identify Stack
+ // Mask for ClusterId|CoreId
+ LoadConstantToReg (0xFFFF, r4)
+ and r1, r1, r4
+ // Is it the Primary Core ?
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r4)
+ ldr r4, [r4]
+ cmp r1, r4
+ beq ArmPlatformStackSetPrimary
+ bne ArmPlatformStackSetSecondary
+ ENDFUNC
+
+//VOID
+//ArmPlatformStackSetPrimary (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ArmPlatformStackSetPrimary FUNCTION
+ mov r4, lr
+
+ // Add stack of primary stack to StackBase
+ add r0, r0, r2
+
+ // Compute SecondaryCoresCount * SecondaryCoreStackSize
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdCoreCount, r1)
+ ldr r1, [r1]
+ sub r1, #1
+ mul r3, r3, r1
+
+ // Set Primary Stack ((StackBase + PrimaryStackSize) + (SecondaryCoresCount * SecondaryCoreStackSize))
+ add sp, r0, r3
+
+ bx r4
+ ENDFUNC
+
+//VOID
+//ArmPlatformStackSetSecondary (
+// IN UINTN StackBase,
+// IN UINTN MpId,
+// IN UINTN PrimaryStackSize,
+// IN UINTN SecondaryStackSize
+// );
+ArmPlatformStackSetSecondary FUNCTION
+ mov r4, lr
+ mov sp, r0
+
+ // Get Core Position
+ mov r0, r1
+ bl ArmPlatformGetCorePosition
+ mov r5, r0
+
+ // Get Primary Core Position
+ LoadConstantToReg (_gPcd_FixedAtBuild_PcdArmPrimaryCore, r0)
+ ldr r0, [r0]
+ bl ArmPlatformGetCorePosition
+
+ // Get Secondary Core Position. We should get consecutive secondary stack number from 1...(CoreCount-1)
+ cmp r5, r0
+ subhi r5, r5, #1
+ add r5, r5, #1
+
+ // Compute top of the secondary stack
+ mul r3, r3, r5
+
+ // Set stack
+ add sp, sp, r3
+
+ bx r4
+ ENDFUNC
+
+ END
diff --git a/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.inf b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.inf new file mode 100644 index 0000000000..a41dae2b4f --- /dev/null +++ b/ArmPlatformPkg/Library/ArmPlatformStackLib/ArmPlatformStackLib.inf @@ -0,0 +1,39 @@ +#/* @file
+#
+# Copyright (c) 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 = ArmPlatformStackLib
+ FILE_GUID = 5e2e44af-53c1-44c2-a801-9c149f3d6ba0
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ArmPlatformStackLib
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ ArmPkg/ArmPkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+
+[Sources.common]
+ ArmPlatformStackLib.asm | RVCT
+ ArmPlatformStackLib.S | GCC
+
+[FixedPcd]
+ gArmPlatformTokenSpaceGuid.PcdCoreCount
+
+ gArmPlatformTokenSpaceGuid.PcdCoreCount
+
+ gArmTokenSpaceGuid.PcdArmPrimaryCoreMask
+ gArmTokenSpaceGuid.PcdArmPrimaryCore
|