[mirror_edk2.git] / ArmPkg / Library / ArmMmuLib / Arm / ArmMmuLibV7Support.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2016, Linaro Limited. All rights reserved.\r
#\r
# SPDX-License-Identifier: BSD-2-Clause-Patent\r
#\r
#------------------------------------------------------------------------------\r
\r
#include <AsmMacroIoLib.h>\r
\r
.text\r
.align 2\r
\r
GCC_ASM_EXPORT (ArmReadIdMmfr0)\r
GCC_ASM_EXPORT (ArmHasMpExtensions)\r
\r
#------------------------------------------------------------------------------\r
\r
ASM_PFX (ArmHasMpExtensions):\r
  mrc     p15,0,R0,c0,c0,5\r
  // Get Multiprocessing extension (bit31)\r
  lsr     R0, R0, #31\r
  bx      LR\r
\r
ASM_PFX(ArmReadIdMmfr0):\r
  mrc    p15, 0, r0, c0, c1, 4     @ Read ID_MMFR0 Register\r
  bx     lr\r
\r
ASM_FUNCTION_REMOVE_IF_UNREFERENCED\r
Commit	Line	Data
d7f03464 AB	1	#------------------------------------------------------------------------------\r
	2	#\r
	3	# Copyright (c) 2016, Linaro Limited. All rights reserved.\r
	4	#\r
4059386c	5	# SPDX-License-Identifier: BSD-2-Clause-Patent\r
d7f03464 AB	6	#\r
	7	#------------------------------------------------------------------------------\r
	8	\r
	9	#include <AsmMacroIoLib.h>\r
	10	\r
	11	.text\r
	12	.align 2\r
	13	\r
	14	GCC_ASM_EXPORT (ArmReadIdMmfr0)\r
	15	GCC_ASM_EXPORT (ArmHasMpExtensions)\r
	16	\r
	17	#------------------------------------------------------------------------------\r
	18	\r
	19	ASM_PFX (ArmHasMpExtensions):\r
	20	mrc p15,0,R0,c0,c0,5\r
	21	// Get Multiprocessing extension (bit31)\r
	22	lsr R0, R0, #31\r
	23	bx LR\r
	24	\r
	25	ASM_PFX(ArmReadIdMmfr0):\r
	26	mrc p15, 0, r0, c0, c1, 4 @ Read ID_MMFR0 Register\r
	27	bx lr\r
	28	\r
	29	ASM_FUNCTION_REMOVE_IF_UNREFERENCED\r