#------------------------------------------------------------------------------ | |
# | |
# CpuSleep() for ARMv7 | |
# | |
# ARMv6 versions was: | |
# MOV r0,#0 | |
# MCR p15,0,r0,c7,c0,4 ;Wait for Interrupt instruction | |
# | |
# But this is a no-op on ARMv7 | |
# | |
# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> | |
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> | |
# SPDX-License-Identifier: BSD-2-Clause-Patent | |
# | |
#------------------------------------------------------------------------------ | |
.text | |
.p2align 2 | |
GCC_ASM_EXPORT(CpuSleep) | |
#/** | |
# Places the CPU in a sleep state until an interrupt is received. | |
# | |
# Places the CPU in a sleep state until an interrupt is received. If interrupts | |
# are disabled prior to calling this function, then the CPU will be placed in a | |
# sleep state indefinitely. | |
# | |
#**/ | |
#VOID | |
#EFIAPI | |
#CpuSleep ( | |
# VOID | |
# ); | |
# | |
ASM_PFX(CpuSleep): | |
wfi | |
bx lr |