#------------------------------------------------------------------------------ | |
# | |
# CpuPause for LoongArch | |
# | |
# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR> | |
# | |
# SPDX-License-Identifier: BSD-2-Clause-Patent | |
# | |
#------------------------------------------------------------------------------ | |
ASM_GLOBAL ASM_PFX(CpuPause) | |
#/** | |
# Requests CPU to pause for a short period of time. | |
# | |
# Requests CPU to pause for a short period of time. Typically used in MP | |
# systems to prevent memory starvation while waiting for a spin lock. | |
# | |
#**/ | |
ASM_PFX(CpuPause): | |
nop | |
nop | |
nop | |
nop | |
nop | |
nop | |
nop | |
nop | |
jirl $zero, $ra, 0 | |
.end |