// SPDX-License-Identifier: GPL-2.0-or-later/* * Copyright (C) 2009 Sunplus Core Technology Co., Ltd. *  Chen Liqin <liqin.chen@sunplusct.com> *  Lennox Wu <lennox.wu@sunplusct.com> * Copyright (C) 2012 Regents of the University of California */ #include <linux/init.h>#include <linux/mm.h>#include <linux/memblock.h>#include <linux/sched.h>#include <linux/console.h>#include <linux/screen_info.h>#include <linux/of_fdt.h>#include <linux/of_platform.h>#include <linux/sched/task.h>#include <linux/swiotlb.h>#include <linux/smp.h> #include <asm/clint.h>#include <asm/cpu_ops.h>#include <asm/setup.h>#include <asm/sections.h>#include <asm/sbi.h>#include <asm/tlbflush.h>#include <asm/thread_info.h>#include <asm/kasan.h> #include "head.h" #ifdef CONFIG_DUMMY_CONSOLEstruct screen_info screen_info = {	.orig_video_lines	= 30,	.orig_video_cols	= 80,	.orig_video_mode	= 0,	.orig_video_ega_bx	= 0,	.orig_video_isVGA	= 1,	.orig_video_points	= 8};#endif /* * The lucky hart to first increment this variable will boot the other cores. * This is used before the kernel initializes the BSS so it can't be in the * BSS. */atomic_t hart_lottery __section(.sdata);unsigned long boot_cpu_hartid;static DEFINE_PER_CPU(struct cpu, cpu_devices); void __init parse_dtb(void){	if (early_init_dt_scan(dtb_early_va))		return; 	pr_err("No DTB passed to the kernel\n");#ifdef CONFIG_CMDLINE_FORCE	strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);	pr_info("Forcing kernel command line to: %s\n", boot_command_line);#endif} void __init setup_arch(char **cmdline_p){	init_mm.start_code = (unsigned long) _stext;	init_mm.end_code   = (unsigned long) _etext;	init_mm.end_data   = (unsigned long) _edata;	init_mm.brk        = (unsigned long) _end; 	*cmdline_p = boot_command_line; 	parse_early_param(); 	setup_bootmem();	paging_init();#if IS_ENABLED(CONFIG_BUILTIN_DTB)	unflatten_and_copy_device_tree();#else	unflatten_device_tree();#endif	clint_init_boot_cpu(); #ifdef CONFIG_SWIOTLB	swiotlb_init(1);#endif #ifdef CONFIG_KASAN	kasan_init();#endif #if IS_ENABLED(CONFIG_RISCV_SBI)	sbi_init();#endif #ifdef CONFIG_SMP	setup_smp();#endif 	riscv_fill_hwcap();} static int __init topology_init(void){	int i; 	for_each_possible_cpu(i) {		struct cpu *cpu = &per_cpu(cpu_devices, i); 		cpu->hotpluggable = cpu_has_hotplug(i);		register_cpu(cpu, i);	} 	return 0;}subsys_initcall(topology_init);