s390/airq: recognize directed interrupts

Add an extra parameter for airq handlers to recognize
floating vs. directed interrupts.

Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/airq.h

@@ -14,7 +14,7 @@
 
 struct airq_struct {
 	struct hlist_node list;		/* Handler queueing. */
-	void (*handler)(struct airq_struct *);	/* Thin-interrupt handler */
+	void (*handler)(struct airq_struct *airq, bool floating);
 	u8 *lsi_ptr;			/* Local-Summary-Indicator pointer */
 	u8 lsi_mask;			/* Local-Summary-Indicator mask */
 	u8 isc;				/* Interrupt-subclass */

arch/s390/kvm/interrupt.c

@@ -3194,7 +3194,7 @@ int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc)
 }
 EXPORT_SYMBOL_GPL(kvm_s390_gisc_unregister);
 
-static void gib_alert_irq_handler(struct airq_struct *airq)
+static void gib_alert_irq_handler(struct airq_struct *airq, bool floating)
 {
 	inc_irq_stat(IRQIO_GAL);
 	process_gib_alert_list();

arch/s390/pci/pci_irq.c

@@ -56,7 +56,7 @@ static struct irq_chip zpci_irq_chip = {
 	.irq_mask = pci_msi_mask_irq,
 };
 
-static void zpci_irq_handler(struct airq_struct *airq)
+static void zpci_irq_handler(struct airq_struct *airq, bool floating)
 {
 	unsigned long si, ai;
 	struct airq_iv *aibv;

drivers/s390/cio/airq.c

@@ -95,7 +95,7 @@ static irqreturn_t do_airq_interrupt(int irq, void *dummy)
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(airq, head, list)
 		if ((*airq->lsi_ptr & airq->lsi_mask) != 0)
-			airq->handler(airq);
+			airq->handler(airq, !tpi_info->directed_irq);
 	rcu_read_unlock();
 
 	return IRQ_HANDLED;

drivers/s390/cio/cio.h

@@ -51,7 +51,7 @@ struct tpi_info {
 	struct subchannel_id schid;
 	u32 intparm;
 	u32 adapter_IO:1;
-	u32 :1;
+	u32 directed_irq:1;
 	u32 isc:3;
 	u32 :27;
 	u32 type:3;

drivers/s390/cio/qdio_thinint.c

@@ -40,7 +40,7 @@ static LIST_HEAD(tiq_list);
 static DEFINE_MUTEX(tiq_list_lock);
 
 /* Adapter interrupt definitions */
-static void tiqdio_thinint_handler(struct airq_struct *airq);
+static void tiqdio_thinint_handler(struct airq_struct *airq, bool floating);
 
 static struct airq_struct tiqdio_airq = {
 	.handler = tiqdio_thinint_handler,
@@ -179,7 +179,7 @@ static inline void tiqdio_call_inq_handlers(struct qdio_irq *irq)
  * tiqdio_thinint_handler - thin interrupt handler for qdio
  * @airq: pointer to adapter interrupt descriptor
  */
-static void tiqdio_thinint_handler(struct airq_struct *airq)
+static void tiqdio_thinint_handler(struct airq_struct *airq, bool floating)
 {
 	u32 si_used = clear_shared_ind();
 	struct qdio_q *q;

drivers/s390/crypto/ap_bus.c

@@ -116,7 +116,7 @@ static int user_set_domain;
 static struct bus_type ap_bus_type;
 
 /* Adapter interrupt definitions */
-static void ap_interrupt_handler(struct airq_struct *airq);
+static void ap_interrupt_handler(struct airq_struct *airq, bool floating);
 
 static int ap_airq_flag;
 
@@ -393,7 +393,7 @@ static enum hrtimer_restart ap_poll_timeout(struct hrtimer *unused)
  * ap_interrupt_handler() - Schedule ap_tasklet on interrupt
  * @airq: pointer to adapter interrupt descriptor
  */
-static void ap_interrupt_handler(struct airq_struct *airq)
+static void ap_interrupt_handler(struct airq_struct *airq, bool floating)
 {
 	inc_irq_stat(IRQIO_APB);
 	if (!ap_suspend_flag)

drivers/s390/virtio/virtio_ccw.c

@@ -182,7 +182,7 @@ static void drop_airq_indicator(struct virtqueue *vq, struct airq_info *info)
 	write_unlock_irqrestore(&info->lock, flags);
 }
 
-static void virtio_airq_handler(struct airq_struct *airq)
+static void virtio_airq_handler(struct airq_struct *airq, bool floating)
 {
 	struct airq_info *info = container_of(airq, struct airq_info, airq);
 	unsigned long ai;