/* * Set up kernel memory allocators */ static void __init mm_init(void) { /* * page_cgroup requires countinous pages as memmap * and it's bigger than MAX_ORDER unless SPARSEMEM. */ page_cgroup_init_flatmem(); mem_init(); kmem_cache_init(); pgtable_cache_init(); vmalloc_init(); }
/* * Set up kernel memory allocators */ static void __init mm_init(void) { /* * page_cgroup requires countinous pages as memmap * and it's bigger than MAX_ORDER unless SPARSEMEM. */ page_cgroup_init_flatmem(); mem_init(); kmem_cache_init(); cmm_cache_init(); pgtable_cache_init(); vmalloc_init(); #if defined(CONFIG_MAPPED_MEMBLOCK) || defined(CONFIG_UNMAPPED_MEMBLOCK) cmm_block_init(); cmm_block_init_late(); #endif }
/* * Set up kernel memory allocators */ static void __init mm_init(void) { /* * page_cgroup requires countinous pages as memmap * and it's bigger than MAX_ORDER unless SPARSEMEM. */ page_cgroup_init_flatmem(); mem_init(); kmem_cache_init(); // problematic :meidh // test volatile unsigned *bank5_in = (unsigned int*)(0xF8003844); volatile unsigned *bank5_out = (unsigned int*)(0xF8003850); *bank5_out = *bank5_in ^ 0x00000400; // end test pgtable_cache_init(); vmalloc_init(); }
asmlinkage void __init start_kernel(void) { char * command_line; extern struct kernel_param __start___param[], __stop___param[]; smp_setup_processor_id(); /* * Need to run as early as possible, to initialize the * lockdep hash: */ lockdep_init(); debug_objects_early_init(); cgroup_init_early(); local_irq_disable(); early_boot_irqs_off(); early_init_irq_lock_class(); /* * Interrupts are still disabled. Do necessary setups, then * enable them */ lock_kernel(); tick_init(); boot_cpu_init(); page_address_init(); printk(KERN_NOTICE); printk(linux_banner); setup_arch(&command_line); mm_init_owner(&init_mm, &init_task); setup_command_line(command_line); setup_per_cpu_areas(); setup_nr_cpu_ids(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ /* * Set up the scheduler prior starting any interrupts (such as the * timer interrupt). Full topology setup happens at smp_init() * time - but meanwhile we still have a functioning scheduler. */ sched_init(); /* * Disable preemption - early bootup scheduling is extremely * fragile until we cpu_idle() for the first time. */ preempt_disable(); build_all_zonelists(); page_alloc_init(); printk(KERN_NOTICE "Kernel command line: %s\n", boot_command_line); parse_early_param(); parse_args("Booting kernel", static_command_line, __start___param, __stop___param - __start___param, &unknown_bootoption); if (!irqs_disabled()) { printk(KERN_WARNING "start_kernel(): bug: interrupts were " "enabled *very* early, fixing it\n"); local_irq_disable(); } sort_main_extable(); trap_init(); rcu_init(); /* init some links before init_ISA_irqs() */ early_irq_init(); init_IRQ(); pidhash_init(); init_timers(); hrtimers_init(); softirq_init(); timekeeping_init(); time_init(); sched_clock_init(); profile_init(); if (!irqs_disabled()) printk(KERN_CRIT "start_kernel(): bug: interrupts were " "enabled early\n"); early_boot_irqs_on(); local_irq_enable(); /* * HACK ALERT! This is early. We're enabling the console before * we've done PCI setups etc, and console_init() must be aware of * this. But we do want output early, in case something goes wrong. */ console_init(); if (panic_later) panic(panic_later, panic_param); lockdep_info(); /* * Need to run this when irqs are enabled, because it wants * to self-test [hard/soft]-irqs on/off lock inversion bugs * too: */ locking_selftest(); #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start && !initrd_below_start_ok && page_to_pfn(virt_to_page((void *)initrd_start)) < min_low_pfn) { printk(KERN_CRIT "initrd overwritten (0x%08lx < 0x%08lx) - " "disabling it.\n", page_to_pfn(virt_to_page((void *)initrd_start)), min_low_pfn); initrd_start = 0; } #endif vmalloc_init(); vfs_caches_init_early(); cpuset_init_early(); page_cgroup_init(); mem_init(); enable_debug_pagealloc(); cpu_hotplug_init(); kmem_cache_init(); debug_objects_mem_init(); idr_init_cache(); setup_per_cpu_pageset(); numa_policy_init(); if (late_time_init) late_time_init(); calibrate_delay(); pidmap_init(); pgtable_cache_init(); prio_tree_init(); anon_vma_init(); #ifdef CONFIG_X86 if (efi_enabled) efi_enter_virtual_mode(); #endif thread_info_cache_init(); cred_init(); fork_init(num_physpages); proc_caches_init(); buffer_init(); key_init(); security_init(); vfs_caches_init(num_physpages); radix_tree_init(); signals_init(); /* rootfs populating might need page-writeback */ page_writeback_init(); #ifdef CONFIG_PROC_FS proc_root_init(); #endif cgroup_init(); cpuset_init(); taskstats_init_early(); delayacct_init(); check_bugs(); acpi_early_init(); /* before LAPIC and SMP init */ ftrace_init(); /* Do the rest non-__init'ed, we're now alive */ rest_init(); }