audk/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S
Oliver Smith-Denny 734e71f428 MdePkg: Move AsmMacroIoLib*.h from ArmPkg
AsmMacroIoLib.h and AsmMacroIoLibV8.h are used by the
CompilerIntrinsicsLib, which is moving to MdePkg. These
functions provide standard definitions for ARM/AARCH64
assembly code, respectively, and so are moved to the arch
directories in MdePkg to avoid MdePkg having a
dependency on ArmPkg.

Now that the files are in Arm/ and AArch64/ directories,
the filenames are changed to AsmMacroLib.h as we can
distinguish the architecture from the path.

AsmMacroIoLib.inc is unused and so is removed.

Continuous-integration-options: PatchCheck.ignore-multi-package

Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
2024-09-12 19:36:59 +00:00

104 lines
2.2 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
# Copyright (c) 2016, Linaro Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
#include <AsmMacroLib.h>
ASM_FUNC(ArmIsMpCore)
mrc p15,0,R0,c0,c0,5
// Get Multiprocessing extension (bit31) & U bit (bit30)
and R0, R0, #0xC0000000
// if (bit31 == 1) && (bit30 == 0) then the processor is part of a multiprocessor system
cmp R0, #0x80000000
moveq R0, #1
movne R0, #0
bx LR
ASM_FUNC(ArmEnableAsynchronousAbort)
cpsie a
isb
bx LR
ASM_FUNC(ArmDisableAsynchronousAbort)
cpsid a
isb
bx LR
ASM_FUNC(ArmEnableIrq)
cpsie i
isb
bx LR
ASM_FUNC(ArmDisableIrq)
cpsid i
isb
bx LR
ASM_FUNC(ArmEnableFiq)
cpsie f
isb
bx LR
ASM_FUNC(ArmDisableFiq)
cpsid f
isb
bx LR
ASM_FUNC(ArmEnableInterrupts)
cpsie if
isb
bx LR
ASM_FUNC(ArmDisableInterrupts)
cpsid if
isb
bx LR
ASM_FUNC(ArmReadIdMmfr4)
mrc p15,0,r0,c0,c2,6 @ Read ID_MMFR4 Register
bx lr
// UINTN
// ReadCCSIDR (
// IN UINT32 CSSELR
// )
ASM_FUNC(ReadCCSIDR)
mcr p15,2,r0,c0,c0,0 @ Write Cache Size Selection Register (CSSELR)
isb
mrc p15,1,r0,c0,c0,0 @ Read current CP15 Cache Size ID Register (CCSIDR)
bx lr
// UINT32
// ReadCCSIDR2 (
// IN UINT32 CSSELR
// )
ASM_FUNC(ReadCCSIDR2)
mcr p15,2,r0,c0,c0,0 @ Write Cache Size Selection Register (CSSELR)
isb
mrc p15,1,r0,c0,c0,2 @ Read current CP15 Cache Size ID Register (CCSIDR2)
bx lr
// UINT32
// ReadCLIDR (
// IN UINT32 CSSELR
// )
ASM_FUNC(ReadCLIDR)
mrc p15,1,r0,c0,c0,1 @ Read CP15 Cache Level ID Register
bx lr
ASM_FUNC(ArmReadNsacr)
mrc p15, 0, r0, c1, c1, 2
bx lr
ASM_FUNC(ArmWriteNsacr)
mcr p15, 0, r0, c1, c1, 2
bx lr
ASM_FUNCTION_REMOVE_IF_UNREFERENCED