genirq: Reflect IRQ_MOVE_PCNTXT in irq_data state

Required by x86.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

include/linux/irq.h

@@ -170,6 +170,8 @@ struct irq_data {
  * IRQD_LEVEL			- Interrupt is level triggered
  * IRQD_WAKEUP_STATE		- Interrupt is configured for wakeup
  *				  from suspend
+ * IRDQ_MOVE_PCNTXT		- Interrupt can be moved in process
+ *				  context
  */
 enum {
 	IRQD_TRIGGER_MASK		= 0xf,
@@ -179,6 +181,7 @@ enum {
 	IRQD_AFFINITY_SET		= (1 << 12),
 	IRQD_LEVEL			= (1 << 13),
 	IRQD_WAKEUP_STATE		= (1 << 14),
+	IRQD_MOVE_PCNTXT		= (1 << 15),
 };
 
 static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -225,6 +228,11 @@ static inline bool irqd_is_wakeup_set(struct irq_data *d)
 	return d->state_use_accessors & IRQD_WAKEUP_STATE;
 }
 
+static inline bool irqd_can_move_in_process_context(struct irq_data *d)
+{
+	return d->state_use_accessors & IRQD_MOVE_PCNTXT;
+}
+
 /**
  * struct irq_chip - hardware interrupt chip descriptor
  *

kernel/irq/chip.c

@@ -712,11 +712,13 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 	irq_settings_clr_and_set(desc, clr, set);
 
 	irqd_clear(&desc->irq_data, IRQD_NO_BALANCING | IRQD_PER_CPU |
-		   IRQD_TRIGGER_MASK | IRQD_LEVEL);
+		   IRQD_TRIGGER_MASK | IRQD_LEVEL | IRQD_MOVE_PCNTXT);
 	if (irq_settings_has_no_balance_set(desc))
 		irqd_set(&desc->irq_data, IRQD_NO_BALANCING);
 	if (irq_settings_is_per_cpu(desc))
 		irqd_set(&desc->irq_data, IRQD_PER_CPU);
+	if (irq_settings_can_move_pcntxt(desc))
+		irqd_set(&desc->irq_data, IRQD_MOVE_PCNTXT);
 
 	irqd_set(&desc->irq_data, irq_settings_get_trigger_mask(desc));