/* SPDX-License-Identifier: GPL-2.0-only *//* * CPU reset routines * * Copyright (C) 2001 Deep Blue Solutions Ltd. * Copyright (C) 2012 ARM Ltd. * Copyright (C) 2015 Huawei Futurewei Technologies. */ #include <linux/linkage.h>#include <linux/cfi_types.h>#include <asm/assembler.h>#include <asm/sysreg.h>#include <asm/virt.h> .text.pushsection    .idmap.text, "a" /* * cpu_soft_restart(el2_switch, entry, arg0, arg1, arg2) * * @el2_switch: Flag to indicate a switch to EL2 is needed. * @entry: Location to jump to for soft reset. * arg0: First argument passed to @entry. (relocation list) * arg1: Second argument passed to @entry.(physical kernel entry) * arg2: Third argument passed to @entry. (physical dtb address) * * Put the CPU into the same state as it would be if it had been reset, and * branch to what would be the reset vector. It must be executed with the * flat identity mapping. */SYM_TYPED_FUNC_START(cpu_soft_restart)	mov_q	x12, INIT_SCTLR_EL1_MMU_OFF	pre_disable_mmu_workaround	/*	 * either disable EL1&0 translation regime or disable EL2&0 translation	 * regime if HCR_EL2.E2H == 1	 */	msr	sctlr_el1, x12	isb 	cbz	x0, 1f				// el2_switch?	mov	x0, #HVC_SOFT_RESTART	hvc	#0				// no return 1:	mov	x8, x1				// entry	mov	x0, x2				// arg0	mov	x1, x3				// arg1	mov	x2, x4				// arg2	br	x8SYM_FUNC_END(cpu_soft_restart) .popsection