void smp_message_recv(unsigned int msg)
{
switch (msg) {
case SMP_MSG_FUNCTION:
generic_smp_call_function_interrupt();
break;
case SMP_MSG_RESCHEDULE:
break;
case SMP_MSG_FUNCTION_SINGLE:
generic_smp_call_function_single_interrupt();
break;
case SMP_MSG_TIMER:
ipi_timer();
break;
default:
printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",
smp_processor_id(), __func__, msg);
break;
}
}
static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
{
struct ipi_data *bfin_ipi_data;
unsigned int cpu = smp_processor_id();
unsigned long pending;
unsigned long msg;
platform_clear_ipi(cpu, IRQ_SUPPLE_1);
bfin_ipi_data = &__get_cpu_var(bfin_ipi);
smp_mb();
while ((pending = xchg(&bfin_ipi_data->bits, 0)) != 0) {
msg = 0;
do {
msg = find_next_bit(&pending, BITS_PER_LONG, msg + 1);
switch (msg) {
case BFIN_IPI_TIMER:
ipi_timer();
break;
case BFIN_IPI_RESCHEDULE:
scheduler_ipi();
break;
case BFIN_IPI_CALL_FUNC:
generic_smp_call_function_interrupt();
break;
case BFIN_IPI_CALL_FUNC_SINGLE:
generic_smp_call_function_single_interrupt();
break;
case BFIN_IPI_CPU_STOP:
ipi_cpu_stop(cpu);
break;
}
} while (msg < BITS_PER_LONG);
smp_mb();
}
return IRQ_HANDLED;
}
static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
{
struct ipi_data *bfin_ipi_data;
unsigned int cpu = smp_processor_id();
unsigned long pending;
unsigned long msg;
platform_clear_ipi(cpu, IRQ_SUPPLE_1);
smp_rmb();
bfin_ipi_data = this_cpu_ptr(&bfin_ipi);
while ((pending = atomic_xchg(&bfin_ipi_data->bits, 0)) != 0) {
msg = 0;
do {
msg = find_next_bit(&pending, BITS_PER_LONG, msg + 1);
switch (msg) {
case BFIN_IPI_TIMER:
ipi_timer();
break;
case BFIN_IPI_RESCHEDULE:
scheduler_ipi();
break;
case BFIN_IPI_CALL_FUNC:
generic_smp_call_function_interrupt();
break;
case BFIN_IPI_CPU_STOP:
ipi_cpu_stop(cpu);
break;
default:
goto out;
}
atomic_dec(&bfin_ipi_data->count);
} while (msg < BITS_PER_LONG);
}
out:
return IRQ_HANDLED;
}
void smp_message_recv(unsigned int msg)
{
switch (msg) {
case SMP_MSG_FUNCTION:
generic_smp_call_function_interrupt();
break;
case SMP_MSG_RESCHEDULE:
scheduler_ipi();
break;
case SMP_MSG_FUNCTION_SINGLE:
generic_smp_call_function_single_interrupt();
break;
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
case SMP_MSG_TIMER:
ipi_timer();
break;
#endif
default:
printk(KERN_WARNING "SMP %d: %s(): unknown IPI %d\n",
smp_processor_id(), __func__, msg);
break;
}
}
