/*
* First C code run on the secondary CPUs after being started up by
* the master.
*/
asmlinkage __cpuinit void start_secondary(void)
{
unsigned int cpu;
#ifdef CONFIG_MIPS_MT_SMTC
/* Only do cpu_probe for first TC of CPU */
if ((read_c0_tcbind() & TCBIND_CURTC) == 0)
#endif /* CONFIG_MIPS_MT_SMTC */
cpu_probe();
cpu_report();
per_cpu_trap_init();
prom_init_secondary();
/*
* XXX parity protection should be folded in here when it's converted
* to an option instead of something based on .cputype
*/
calibrate_delay();
preempt_disable();
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
prom_smp_finish();
cpu_set(cpu, cpu_callin_map);
cpu_idle();
}
/*
* First C code run on the secondary CPUs after being started up by
* the master.
*/
asmlinkage void start_secondary(void)
{
unsigned int cpu;
cpu_probe();
cpu_report();
per_cpu_trap_init();
prom_init_secondary();
/*
* XXX parity protection should be folded in here when it's converted
* to an option instead of something based on .cputype
*/
calibrate_delay();
preempt_disable();
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
prom_smp_finish();
cpu_set(cpu, cpu_callin_map);
cpu_idle();
}
/*
* First C code run on the secondary CPUs after being started up by
* the master.
*/
asmlinkage void start_secondary(void)
{
unsigned int cpu;
cpu_probe();
cpu_report();
per_cpu_trap_init();
prom_init_secondary();
/*
* XXX parity protection should be folded in here when it's converted
* to an option instead of something based on .cputype
*/
#ifndef CONFIG_CPU_CAVIUM_OCTEON
/* There is no reason to waste time doing this on Octeon. All the cores
are on the same chip and are the same speed by definition */
calibrate_delay();
#endif
preempt_disable();
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
prom_smp_finish();
cpu_set(cpu, cpu_callin_map);
cpu_idle();
}
int start_secondary(void *unused)
{
prom_init_secondary();
write_32bit_cp0_register(CP0_CONTEXT, smp_processor_id()<<23);
current_pgd[smp_processor_id()] = init_mm.pgd;
printk("Slave cpu booted successfully\n");
atomic_inc(&cpus_booted);
cpu_idle();
return 0;
}
/*
* Hook for doing final board-specific setup after the generic smp setup
* is done
*/
asmlinkage void start_secondary(void)
{
unsigned int cpu = smp_processor_id();
prom_init_secondary();
per_cpu_trap_init();
/*
* XXX parity protection should be folded in here when it's converted
* to an option instead of something based on .cputype
*/
pgd_current[cpu] = init_mm.pgd;
cpu_data[cpu].udelay_val = loops_per_jiffy;
prom_smp_finish();
printk("Slave cpu booted successfully\n");
CPUMASK_SETB(cpu_online_map, cpu);
atomic_inc(&cpus_booted);
while (!atomic_read(&smp_commenced));
cpu_idle();
}