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MdePkg: Add LoongArch Cpucfg function

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Add LoongArch AsmCpucfg function and Cpucfg definitions.

Also added Include/Register/LoongArch64/Cpucfg.h to IgnoreFiles of
EccCheck.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Chao Li
2023-11-02 20:29:41 +08:00
committed by Liming Gao
parent 2ff435b264
commit 344dc4b9d3
5 changed files with 606 additions and 1 deletions
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1
MdePkg/Library/BaseLib/BaseLib.inf
View File

@@ -421,6 +421,7 @@
LoongArch64/SetJumpLongJump.S | GCC
LoongArch64/SwitchStack.S | GCC
LoongArch64/ExceptionBase.S | GCC
LoongArch64/Cpucfg.S | GCC
[Packages]
MdePkg/MdePkg.dec

26
MdePkg/Library/BaseLib/LoongArch64/Cpucfg.S Normal file
View File

@@ -0,0 +1,26 @@
#------------------------------------------------------------------------------
#
# AsmCpucfg for LoongArch
#
# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(AsmCpucfg)
#/**
# Read CPUCFG register.
#
# @param a0 Specifies the register number of the CPUCFG to read the data.
# @param a1 Pointer to the variable used to store the CPUCFG register value.
#
#**/
ASM_PFX(AsmCpucfg):
cpucfg $t0, $a0
stptr.d $t0, $a1, 0
jirl $zero, $ra, 0
.end