audk/MdePkg/Library/BaseLib/LoongArch64/ReadStableCounter.S
Chao Li 414ad233a5 MdePkg: Add read stable counter operation for LoongArch
Add LoongArch gets stable counter ASM function.

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>
2024-02-06 23:51:47 +08:00

25 lines
585 B
ArmAsm

#------------------------------------------------------------------------------
#
# LoongArch Read Stable Counter
#
# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(AsmReadStableCounter)
#/**
# Gets the timer count value.
#
# @param[] VOID
# @retval timer count value.
#
#**/
ASM_PFX(AsmReadStableCounter):
rdtime.d $a0, $zero
jirl $zero, $ra, 0
.end