/* called from arch code */
void lk_main(ulong arg0, ulong arg1, ulong arg2, ulong arg3)
{
// save the boot args
lk_boot_args[0] = arg0;
lk_boot_args[1] = arg1;
lk_boot_args[2] = arg2;
lk_boot_args[3] = arg3;
// get us into some sort of thread context
thread_init_early();
// early arch stuff
lk_primary_cpu_init_level(LK_INIT_LEVEL_EARLIEST, LK_INIT_LEVEL_ARCH_EARLY - 1);
arch_early_init();
// do any super early platform initialization
lk_primary_cpu_init_level(LK_INIT_LEVEL_ARCH_EARLY, LK_INIT_LEVEL_PLATFORM_EARLY - 1);
platform_early_init();
// do any super early target initialization
lk_primary_cpu_init_level(LK_INIT_LEVEL_PLATFORM_EARLY, LK_INIT_LEVEL_TARGET_EARLY - 1);
target_early_init();
#if WITH_SMP
dprintf(INFO, "\nwelcome to lk/MP\n\n");
#else
dprintf(INFO, "\nwelcome to lk\n\n");
#endif
dprintf(INFO, "boot args 0x%lx 0x%lx 0x%lx 0x%lx\n",
lk_boot_args[0], lk_boot_args[1], lk_boot_args[2], lk_boot_args[3]);
// deal with any static constructors
dprintf(SPEW, "calling constructors\n");
call_constructors();
// bring up the kernel heap
dprintf(SPEW, "initializing heap\n");
lk_primary_cpu_init_level(LK_INIT_LEVEL_TARGET_EARLY, LK_INIT_LEVEL_HEAP - 1);
heap_init();
// initialize the kernel
lk_primary_cpu_init_level(LK_INIT_LEVEL_HEAP, LK_INIT_LEVEL_KERNEL - 1);
kernel_init();
lk_primary_cpu_init_level(LK_INIT_LEVEL_KERNEL, LK_INIT_LEVEL_THREADING - 1);
// create a thread to complete system initialization
dprintf(SPEW, "creating bootstrap completion thread\n");
thread_t *t = thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
t->pinned_cpu = 0;
thread_detach(t);
thread_resume(t);
// become the idle thread and enable interrupts to start the scheduler
thread_become_idle();
}
void lk_main(void)
{
inc_critical_section();
// get us into some sort of thread context
thread_init_early();
// early arch stuff
lk_init_level(LK_INIT_LEVEL_ARCH_EARLY - 1);
arch_early_init();
// do any super early platform initialization
lk_init_level(LK_INIT_LEVEL_PLATFORM_EARLY - 1);
platform_early_init();
// do any super early target initialization
lk_init_level(LK_INIT_LEVEL_TARGET_EARLY - 1);
target_early_init();
dprintf(INFO, "welcome to lk\n\n");
#if WITH_PLATFORM_MSM_SHARED
bs_set_timestamp(BS_BL_START);
#endif
// deal with any static constructors
dprintf(SPEW, "calling constructors\n");
call_constructors();
// bring up the kernel heap
dprintf(SPEW, "initializing heap\n");
lk_init_level(LK_INIT_LEVEL_HEAP - 1);
heap_init();
#if WITH_PLATFORM_MSM_SHARED
__stack_chk_guard_setup();
#endif
// initialize the kernel
lk_init_level(LK_INIT_LEVEL_KERNEL - 1);
kernel_init();
lk_init_level(LK_INIT_LEVEL_THREADING - 1);
#if (!ENABLE_NANDWRITE)
// create a thread to complete system initialization
dprintf(SPEW, "creating bootstrap completion thread\n");
thread_t *t = thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
thread_detach(t);
thread_resume(t);
// become the idle thread and enable interrupts to start the scheduler
thread_become_idle();
#else
bootstrap_nandwrite();
#endif
}
void kmain(void)
{
// get us into some sort of thread context
thread_init_early();
// early arch stuff
arch_early_init();
// do any super early platform initialization
platform_early_init();
// do any super early target initialization
target_early_init();
dprintf(INFO, "welcome to lk\n\n");
bs_set_timestamp(BS_BL_START);
// deal with any static constructors
dprintf(SPEW, "calling constructors\n");
call_constructors();
// bring up the kernel heap
dprintf(SPEW, "initializing heap\n");
heap_init();
__stack_chk_guard_setup();
// initialize the threading system
dprintf(SPEW, "initializing threads\n");
thread_init();
// initialize the dpc system
dprintf(SPEW, "initializing dpc\n");
dpc_init();
// initialize kernel timers
dprintf(SPEW, "initializing timers\n");
timer_init();
#if (!ENABLE_NANDWRITE)
// create a thread to complete system initialization
dprintf(SPEW, "creating bootstrap completion thread\n");
thread_resume(thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE));
// enable interrupts
exit_critical_section();
// become the idle thread
thread_become_idle();
#else
bootstrap_nandwrite();
#endif
}
void kmain(void)
{
task_t *task_shell;
int ret;
/*************** Init Arch ****************/
arch_early_init();
show_logo();
/*************** Init Platform ****************/
platform_init();
timer_init();
buses_init();
/*************** Init Task ****************/
task_init();
task_create_init();
/*************** Init Workqueu ****************/
init_workqueues();
/*************** Init File System ****************/
register_filesystem(&fat_fs);
/*************** Creating Shell TASK ****************/
task_shell = task_alloc("shell", 0x2000, 5);
if (NULL == task_shell)
{
return;
}
ret = task_create(task_shell, init_shell, 0);
if (ret) {
printk("Create init shell task failed\n");
}
sema_init(&sem, 1);
arch_enable_ints();
while(1)
{
enter_critical_section();
arch_idle();
task_schedule();
exit_critical_section();
}
task_free(task_shell);
}
void kmain()
{
irq_disable();
/*
* A primeira coisa a se fazer é iniciar todo o gerenciador
* de memória.
*/
mm_init();
arch_early_init();
ioremap_init();
irq_init();
sched_init();
timer_init();
/*
* Neste momento temos o gerenciador de memória e escalonador prontos,
* já podemos habilitar as interrupções, que podem ser utilizadas
* pelos drivers.
*/
irq_enable();
/* Inicia os drivers da plataforma */
arch_setup();
/* Requisita um modo se existir um framebuffer*/
fb_set_mode();
/* Inicia o console sobre o framebuffer */
fb_console_init();
kernel_info();
#if 1
irq_disable();
semaphore_init(&sem, 1);
create_task("a", 4);
create_task("b", 5);
create_task("c", 6);
create_task("d", 7);
create_task("b", 8);
create_task("b", 9);
irq_enable();
/* Fica de boas esperando as trocas de contexto */
#endif
/* Como queremos imprimir para depuração do driver, inicializamos ele agora */
//bcm2835_emmc_init();
for (;;) {
led_blink();
//printk("-");
}
}
void main(struct multiboot *mboot) {
int rc;
/* init the kmsg buffer and printk */
console_sys_init();
kmsg_init();
console_register(&kmsg_con);
/* arch might want to setup stuff */
arch_early_init();
printk("kmsg: buffer setup!\n");
printk("sys: kernel relocation: 0x%x -> 0x%x size 0x%x\n",
&kernel_base, &kernel_end,
(uintptr_t)&kernel_end - (uintptr_t)&kernel_base);
parse_multiboot(mboot);
paging_fini();
heap_install();
/* arch should finish init now */
arch_late_init();
printk("sys: init done!\n");
drivers_init();
do_mount();
do_test();
syscall_init();
/* wait forever */
asm volatile("mov $0x1337, %eax");
asm volatile("mov $0x1337, %ebx");
asm volatile("mov $0x1337, %ecx");
asm volatile("mov $0x1337, %edx");
start_sched();
panic("finished with main, but no idle task was started\n");
}
void lk_main(void)
{
inc_critical_section();
// get us into some sort of thread context
thread_init_early();
// early arch stuff
arch_early_init();
// do any super early platform initialization
platform_early_init();
// do any super early target initialization
target_early_init();
dprintf(INFO, "welcome to lk\n\n");
// deal with any static constructors
dprintf(SPEW, "calling constructors\n");
call_constructors();
// bring up the kernel heap
dprintf(SPEW, "initializing heap\n");
heap_init();
// initialize the kernel
kernel_init();
// create a thread to complete system initialization
dprintf(SPEW, "creating bootstrap completion thread\n");
thread_t *t = thread_create("bootstrap2", &bootstrap2, NULL, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE);
thread_detach(t);
thread_resume(t);
// become the idle thread and enable interrupts to start the scheduler
thread_become_idle();
}