void
cpu_die(void)
{
max_xtp();
local_irq_disable();
cpu_halt();
/* */
BUG();
for (;;);
}
void
cpu_die(void)
{
max_xtp();
local_irq_disable();
cpu_halt();
/* Should never be here */
BUG();
for (;;);
}
static void
stop_this_cpu(void)
{
/*
*/
set_cpu_online(smp_processor_id(), false);
max_xtp();
local_irq_disable();
cpu_halt();
}
static void
stop_this_cpu(void)
{
/*
* Remove this CPU:
*/
cpu_clear(smp_processor_id(), cpu_online_map);
max_xtp();
local_irq_disable();
cpu_halt();
}
void fixup_irqs(void)
{
unsigned int irq;
extern void ia64_process_pending_intr(void);
extern volatile int time_keeper_id;
/* Mask ITV to disable timer */
ia64_set_itv(1 << 16);
/*
* Find a new timesync master
*/
if (smp_processor_id() == time_keeper_id) {
time_keeper_id = cpumask_first(cpu_online_mask);
printk ("CPU %d is now promoted to time-keeper master\n", time_keeper_id);
}
/*
* Phase 1: Locate IRQs bound to this cpu and
* relocate them for cpu removal.
*/
migrate_irqs();
/*
* Phase 2: Perform interrupt processing for all entries reported in
* local APIC.
*/
ia64_process_pending_intr();
/*
* Phase 3: Now handle any interrupts not captured in local APIC.
* This is to account for cases that device interrupted during the time the
* rte was being disabled and re-programmed.
*/
for (irq=0; irq < NR_IRQS; irq++) {
if (vectors_in_migration[irq]) {
struct pt_regs *old_regs = set_irq_regs(NULL);
vectors_in_migration[irq]=0;
generic_handle_irq(irq);
set_irq_regs(old_regs);
}
}
/*
* Now let processor die. We do irq disable and max_xtp() to
* ensure there is no more interrupts routed to this processor.
* But the local timer interrupt can have 1 pending which we
* take care in timer_interrupt().
*/
max_xtp();
local_irq_disable();
}
static void
stop_this_cpu (void)
{
extern void cpu_halt (void);
/*
* Remove this CPU:
*/
clear_bit(smp_processor_id(), &cpu_online_map);
max_xtp();
__cli();
cpu_halt();
}
