void __init setup_arch()

in kernel/setup.c [150:197]

• 27 lines of code
• 2 McCabe index (conditional complexity)

void __init setup_arch(char **cmdline_p)
{
	console_verbose();

	memory_start = memblock_start_of_DRAM();
	memory_end = memblock_end_of_DRAM();

	setup_initial_init_mm(_stext, _etext, _edata, _end);
	init_task.thread.kregs = &fake_regs;

	/* Keep a copy of command line */
	*cmdline_p = boot_command_line;

	find_limits(&min_low_pfn, &max_low_pfn, &max_pfn);
	max_mapnr = max_low_pfn;

	memblock_reserve(__pa_symbol(_stext), _end - _stext);
#ifdef CONFIG_BLK_DEV_INITRD
	if (initrd_start) {
		memblock_reserve(virt_to_phys((void *)initrd_start),
				initrd_end - initrd_start);
	}
#endif /* CONFIG_BLK_DEV_INITRD */

	early_init_fdt_reserve_self();
	early_init_fdt_scan_reserved_mem();

	unflatten_and_copy_device_tree();

	setup_cpuinfo();

	copy_exception_handler(cpuinfo.exception_addr);

	mmu_init();

	copy_fast_tlb_miss_handler(cpuinfo.fast_tlb_miss_exc_addr);

	/*
	 * Initialize MMU context handling here because data from cpuinfo is
	 * needed for this.
	 */
	mmu_context_init();

	/*
	 * get kmalloc into gear
	 */
	paging_init();
}