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 *
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 *
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 */
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 */
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void thread_init(void)
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void thread_init(void)
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{
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{
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    THREAD = NULL;
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    THREAD = NULL;
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    nrdy = 0;
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    atomic_set(&nrdy,0);
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}
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}
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/** Make thread ready
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/** Make thread ready
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 *
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 *
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void thread_ready(thread_t *t)
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void thread_ready(thread_t *t)
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{
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{
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    cpu_t *cpu;
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    cpu_t *cpu;
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    runq_t *r;
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    runq_t *r;
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    ipl_t ipl;
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    ipl_t ipl;
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    int i, avg, send_ipi = 0;
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    int i, avg;
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    ipl = interrupts_disable();
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    ipl = interrupts_disable();
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    spinlock_lock(&t->lock);
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    spinlock_lock(&t->lock);
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    list_append(&t->rq_link, &r->rq_head);
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    list_append(&t->rq_link, &r->rq_head);
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    r->n++;
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    r->n++;
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    spinlock_unlock(&r->lock);
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    spinlock_unlock(&r->lock);
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    atomic_inc(&nrdy);
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    atomic_inc(&nrdy);
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    avg = nrdy / config.cpu_active;
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    avg = atomic_get(&nrdy) / config.cpu_active;
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    spinlock_lock(&cpu->lock);
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    spinlock_lock(&cpu->lock);
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    if ((++cpu->nrdy) > avg) {
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    if ((++cpu->nrdy) > avg) {
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        /*
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        /*
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         * If there are idle halted CPU's, this will wake them up.
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         * If there are idle halted CPU's, this will wake them up.