MPIC has 4 ipis, so it can use the new smp_request_message_ipi to
reduce pathlength when receiving an ipi.
This has the side effect of using the common ipi names, and also
continuing to try request the remaining messages when one fails.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
(void)mpic_cpu_read(MPIC_INFO(CPU_WHOAMI));
}
(void)mpic_cpu_read(MPIC_INFO(CPU_WHOAMI));
}
-#ifdef CONFIG_SMP
-static irqreturn_t mpic_ipi_action(int irq, void *data)
-{
- long ipi = (long)data;
-
- smp_message_recv(ipi);
-
- return IRQ_HANDLED;
-}
-#endif /* CONFIG_SMP */
-
/*
* Linux descriptor level callbacks
*/
/*
* Linux descriptor level callbacks
*/
void mpic_request_ipis(void)
{
struct mpic *mpic = mpic_primary;
void mpic_request_ipis(void)
{
struct mpic *mpic = mpic_primary;
- long i, err;
- static char *ipi_names[] = {
- "IPI0 (call function)",
- "IPI1 (reschedule)",
- "IPI2 (call function single)",
- "IPI3 (debugger break)",
- };
BUG_ON(mpic == NULL);
printk(KERN_INFO "mpic: requesting IPIs ... \n");
BUG_ON(mpic == NULL);
printk(KERN_INFO "mpic: requesting IPIs ... \n");
unsigned int vipi = irq_create_mapping(mpic->irqhost,
mpic->ipi_vecs[0] + i);
if (vipi == NO_IRQ) {
unsigned int vipi = irq_create_mapping(mpic->irqhost,
mpic->ipi_vecs[0] + i);
if (vipi == NO_IRQ) {
- printk(KERN_ERR "Failed to map IPI %ld\n", i);
- break;
- }
- err = request_irq(vipi, mpic_ipi_action,
- IRQF_DISABLED|IRQF_PERCPU,
- ipi_names[i], (void *)i);
- if (err) {
- printk(KERN_ERR "Request of irq %d for IPI %ld failed\n",
- vipi, i);
- break;
+ printk(KERN_ERR "Failed to map %s\n", smp_ipi_name[i]);
+ continue;
+ smp_request_message_ipi(vipi, i);