[mirror_edk2.git] / MdePkg / Library / BaseLib / Arm / EnableInterrupts.S

#------------------------------------------------------------------------------\r
#\r
# EnableInterrupts() for ARM\r
#\r
# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
# SPDX-License-Identifier: BSD-2-Clause-Patent\r
#\r
#------------------------------------------------------------------------------\r
\r
.text\r
.p2align 2\r
GCC_ASM_EXPORT(EnableInterrupts)\r
\r
\r
#/**\r
#  Enables CPU interrupts.\r
#\r
#**/\r
#VOID\r
#EFIAPI\r
#EnableInterrupts (\r
#  VOID\r
#  );\r
#\r
ASM_PFX(EnableInterrupts):\r
    mrs  R0,CPSR\r
    bic  R0,R0,#0x80    @Enable IRQ interrupts\r
    msr  CPSR_c,R0\r
    bx   LR\r
Commit	Line	Data
9095d37b	1	#------------------------------------------------------------------------------\r
ebd04fc2	2	#\r
	3	# EnableInterrupts() for ARM\r
	4	#\r
9095d37b	5	# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
bb817c56	6	# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
9344f092	7	# SPDX-License-Identifier: BSD-2-Clause-Patent\r
ebd04fc2	8	#\r
	9	#------------------------------------------------------------------------------\r
	10	\r
	11	.text\r
	12	.p2align 2\r
4c8a6e06	13	GCC_ASM_EXPORT(EnableInterrupts)\r
ebd04fc2	14	\r
	15	\r
	16	#/**\r
	17	# Enables CPU interrupts.\r
	18	#\r
	19	#**/\r
	20	#VOID\r
	21	#EFIAPI\r
	22	#EnableInterrupts (\r
	23	# VOID\r
	24	# );\r
	25	#\r
	26	ASM_PFX(EnableInterrupts):\r
	27	mrs R0,CPSR\r
01a54966	28	bic R0,R0,#0x80 @Enable IRQ interrupts\r
ebd04fc2	29	msr CPSR_c,R0\r
ebd04fc2	30	bx LR\r