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ArmPlatformPkg: Remove RVCT support

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RVCT is obsolete and no longer used.
Remove support for it.

Signed-off-by: Rebecca Cran <quic_rcran@quicinc.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Rebecca Cran
2022-05-04 02:48:12 +08:00
committed by mergify[bot]
parent 35d9b7ea2d
commit b55b6d33e4
13 changed files with 1 additions and 540 deletions
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83
ArmPlatformPkg/PrePeiCore/Arm/Exception.asm
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//
// Copyright (c) 2011, ARM Limited. All rights reserved.
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//
#include <AutoGen.h>
IMPORT PeiCommonExceptionEntry
EXPORT PeiVectorTable
PRESERVE8
AREA PrePeiCoreException, CODE, READONLY, CODEALIGN, ALIGN=5
//============================================================
//Default Exception Handlers
//============================================================
PeiVectorTable
b _DefaultResetHandler
b _DefaultUndefined
b _DefaultSWI
b _DefaultPrefetchAbort
b _DefaultDataAbort
b _DefaultReserved
b _DefaultIrq
b _DefaultFiq
//
// Default Exception handlers: There is no plan to return from any of these exceptions.
// No context saving at all.
//
_DefaultResetHandler
mov r1, lr
cps #0x13 ; Switch to SVC for common stack
mov r0, #0
blx PeiCommonExceptionEntry
_DefaultUndefined
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #1
blx PeiCommonExceptionEntry
_DefaultSWI
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #2
blx PeiCommonExceptionEntry
_DefaultPrefetchAbort
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #3
blx PeiCommonExceptionEntry
_DefaultDataAbort
sub r1, LR, #8
cps #0x13 ; Switch to SVC for common stack
mov r0, #4
blx PeiCommonExceptionEntry
_DefaultReserved
mov r1, lr
cps #0x13 ; Switch to SVC for common stack
mov r0, #5
blx PeiCommonExceptionEntry
_DefaultIrq
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #6
blx PeiCommonExceptionEntry
_DefaultFiq
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #7
blx PeiCommonExceptionEntry
END

89
ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm
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@@ -1,89 +0,0 @@
//
// Copyright (c) 2011-2013, ARM Limited. All rights reserved.
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//
#include <AutoGen.h>
INCLUDE AsmMacroIoLib.inc
IMPORT CEntryPoint
IMPORT ArmPlatformGetCorePosition
IMPORT ArmPlatformIsPrimaryCore
IMPORT ArmReadMpidr
IMPORT ArmPlatformPeiBootAction
EXPORT _ModuleEntryPoint
PRESERVE8
AREA PrePeiCoreEntryPoint, CODE, READONLY
StartupAddr DCD CEntryPoint
_ModuleEntryPoint
// Do early platform specific actions
bl ArmPlatformPeiBootAction
// Identify CPU ID
bl ArmReadMpidr
// Keep a copy of the MpId register value
mov r5, r0
// Is it the Primary Core ?
bl ArmPlatformIsPrimaryCore
// Get the top of the primary stacks (and the base of the secondary stacks)
mov32 r1, FixedPcdGet64(PcdCPUCoresStackBase) + FixedPcdGet32(PcdCPUCorePrimaryStackSize)
// r0 is equal to 1 if I am the primary core
cmp r0, #1
beq _SetupPrimaryCoreStack
_SetupSecondaryCoreStack
// r1 contains the base of the secondary stacks
// Get the Core Position
mov r6, r1 // Save base of the secondary stacks
mov r0, r5
bl ArmPlatformGetCorePosition
// The stack starts at the top of the stack region. Add '1' to the Core Position to get the top of the stack
add r0, r0, #1
// StackOffset = CorePos * StackSize
mov32 r2, FixedPcdGet32(PcdCPUCoreSecondaryStackSize)
mul r0, r0, r2
// SP = StackBase + StackOffset
add sp, r6, r0
_PrepareArguments
// The PEI Core Entry Point has been computed by GenFV and stored in the second entry of the Reset Vector
mov32 r2, FixedPcdGet32(PcdFvBaseAddress)
ldr r1, [r2, #4]
// Move sec startup address into a data register
// Ensure we're jumping to FV version of the code (not boot remapped alias)
ldr r3, StartupAddr
// Jump to PrePeiCore C code
// r0 = mp_id
// r1 = pei_core_address
mov r0, r5
blx r3
_SetupPrimaryCoreStack
mov sp, r1
mov32 r8, FixedPcdGet64 (PcdCPUCoresStackBase)
mov32 r9, FixedPcdGet32 (PcdInitValueInTempStack)
mov r10, r9
mov r11, r9
mov r12, r9
0:stm r8!, {r9-r12}
cmp r8, r1
blt 0b
b _PrepareArguments
_NeverReturn
b _NeverReturn
END

32
ArmPlatformPkg/PrePeiCore/Arm/SwitchStack.asm
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;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;------------------------------------------------------------------------------
EXPORT SecSwitchStack
AREA Switch_Stack, CODE, READONLY
;/**
; This allows the caller to switch the stack and return
;
; @param StackDelta Signed amount by which to modify the stack pointer
;
; @return Nothing. Goes to the Entry Point passing in the new parameters
;
;**/
;VOID
;EFIAPI
;SecSwitchStack (
; VOID *StackDelta
; );
;
SecSwitchStack
MOV R1, SP
ADD R1, R0, R1
MOV SP, R1
BX LR
END