static int bootstrap2(void *arg)
{
dprintf(SPEW, "top of bootstrap2()\n");
lk_init_level(LK_INIT_LEVEL_ARCH - 1);
arch_init();
// initialize the rest of the platform
dprintf(SPEW, "initializing platform\n");
lk_init_level(LK_INIT_LEVEL_PLATFORM - 1);
platform_init();
// initialize the target
dprintf(SPEW, "initializing target\n");
lk_init_level(LK_INIT_LEVEL_TARGET - 1);
target_init();
dprintf(SPEW, "calling apps_init()\n");
lk_init_level(LK_INIT_LEVEL_APPS - 1);
apps_init();
lk_init_level(LK_INIT_LEVEL_LAST);
return 0;
}
static int secondary_cpu_bootstrap2(void *arg)
{
/* secondary cpu initialize from threading level up. 0 to threading was handled in arch */
lk_init_level(LK_INIT_FLAG_SECONDARY_CPUS, LK_INIT_LEVEL_THREADING, LK_INIT_LEVEL_LAST);
return 0;
}
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 lk_main(ulong arg0, ulong arg1, ulong arg2, ulong arg3)
{
inc_critical_section();
// 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_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");
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_init_level(LK_INIT_LEVEL_HEAP - 1);
heap_init();
// initialize the kernel
lk_init_level(LK_INIT_LEVEL_KERNEL - 1);
kernel_init();
lk_init_level(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);
thread_detach(t);
thread_resume(t);
// become the idle thread and enable interrupts to start the scheduler
thread_become_idle();
}
void arm64_secondary_entry(ulong asm_cpu_num)
{
uint cpu = arch_curr_cpu_num();
if (cpu != asm_cpu_num)
return;
arm64_cpu_early_init();
spin_lock(&arm_boot_cpu_lock);
spin_unlock(&arm_boot_cpu_lock);
/* run early secondary cpu init routines up to the threading level */
lk_init_level(LK_INIT_FLAG_SECONDARY_CPUS, LK_INIT_LEVEL_EARLIEST, LK_INIT_LEVEL_THREADING - 1);
arch_mp_init_percpu();
LTRACEF("cpu num %d\n", cpu);
/* we're done, tell the main cpu we're up */
atomic_add(&secondaries_to_init, -1);
__asm__ volatile("sev");
lk_secondary_cpu_entry();
}
