Files
system76-edk2/ArmPkg/Include/AsmMacroIoLib.inc
oliviermartin 17839a45b8 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
2012-09-28 11:01:36 +00:00

129 lines
3.6 KiB
PHP

;%HEADER%
;/** @file
; Macros to work around lack of Apple support for LDR register, =expr
;
; Copyright (c) 2009, Apple Inc. All rights reserved.<BR>
; 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.
;
;**/
MACRO
MmioWrite32Macro $Address, $Data
ldr r1, = ($Address)
ldr r0, = ($Data)
str r0, [r1]
MEND
MACRO
MmioOr32Macro $Address, $OrData
ldr r1, =($Address)
ldr r2, =($OrData)
ldr r0, [r1]
orr r0, r0, r2
str r0, [r1]
MEND
MACRO
MmioAnd32Macro $Address, $AndData
ldr r1, =($Address)
ldr r2, =($AndData)
ldr r0, [r1]
and r0, r0, r2
str r0, [r1]
MEND
MACRO
MmioAndThenOr32Macro $Address, $AndData, $OrData
ldr r1, =($Address)
ldr r0, [r1]
ldr r2, =($AndData)
and r0, r0, r2
ldr r2, =($OrData)
orr r0, r0, r2
str r0, [r1]
MEND
MACRO
MmioWriteFromReg32Macro $Address, $Reg
ldr r1, =($Address)
str $Reg, [r1]
MEND
MACRO
MmioRead32Macro $Address
ldr r1, =($Address)
ldr r0, [r1]
MEND
MACRO
MmioReadToReg32Macro $Address, $Reg
ldr r1, =($Address)
ldr $Reg, [r1]
MEND
MACRO
LoadConstantMacro $Data
ldr r0, =($Data)
MEND
MACRO
LoadConstantToRegMacro $Data, $Reg
ldr $Reg, =($Data)
MEND
MACRO
GetCorePositionFromMpId $Pos, $MpId, $Tmp
lsr $Pos, $MpId, #6
and $Tmp, $MpId, #3
add $Pos, $Pos, $Tmp
MEND
; The reserved place must be 8-bytes aligned for pushing 64-bit variable on the stack
; Note: Global Size will be modified
MACRO
SetPrimaryStack $StackTop, $GlobalSize, $Tmp
and $Tmp, $GlobalSize, #7
rsbne $Tmp, $Tmp, #8
add $GlobalSize, $GlobalSize, $Tmp
sub sp, $StackTop, $GlobalSize
; Set all the global variables to 0
mov $Tmp, sp
mov $GlobalSize, #0x0
_SetPrimaryStackInitGlobals
cmp $Tmp, $StackTop
beq _SetPrimaryStackEnd
str $GlobalSize, [$Tmp], #4
b _SetPrimaryStackInitGlobals
_SetPrimaryStackEnd
MEND
MACRO
InitializePrimaryStack $GlobalSize, $Tmp1
and $Tmp1, $GlobalSize, #7
rsbne $Tmp1, $Tmp1, #8
add $GlobalSize, $GlobalSize, $Tmp1
mov $Tmp1, sp
sub sp, $GlobalSize
; Set all the global variables to 0
mov $GlobalSize, #0x0
_InitializePrimaryStackLoop
cmp $Tmp1, sp
bls _InitializePrimaryStackEnd
str $GlobalSize, [$Tmp1], #-4
b _InitializePrimaryStackLoop
_InitializePrimaryStackEnd
MEND
END