1 files changed, 35 insertions, 17 deletions

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 5504b671357f..1939d42c21d2 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -31,7 +31,7 @@ typedef	void fastcall (*irq_flow_handler_t)(unsigned int irq,
 /*
  * IRQ line status.
  *
- * Bits 0-16 are reserved for the IRQF_* bits in linux/interrupt.h
+ * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h
  *
  * IRQ types
  */
@@ -45,28 +45,30 @@ typedef	void fastcall (*irq_flow_handler_t)(unsigned int irq,
 #define IRQ_TYPE_PROBE          0x00000010      /* Probing in progress */
 
 /* Internal flags */
-#define IRQ_INPROGRESS          0x00010000      /* IRQ handler active - do not enter! */
-#define IRQ_DISABLED            0x00020000      /* IRQ disabled - do not enter! */
-#define IRQ_PENDING             0x00040000      /* IRQ pending - replay on enable */
-#define IRQ_REPLAY              0x00080000      /* IRQ has been replayed but not acked yet */
-#define IRQ_AUTODETECT          0x00100000      /* IRQ is being autodetected */
-#define IRQ_WAITING             0x00200000      /* IRQ not yet seen - for autodetection */
-#define IRQ_LEVEL               0x00400000      /* IRQ level triggered */
-#define IRQ_MASKED              0x00800000      /* IRQ masked - shouldn't be seen again */
-#define IRQ_PER_CPU             0x01000000      /* IRQ is per CPU */
+#define IRQ_INPROGRESS          0x00000100      /* IRQ handler active - do not enter! */
+#define IRQ_DISABLED            0x00000200      /* IRQ disabled - do not enter! */
+#define IRQ_PENDING             0x00000400      /* IRQ pending - replay on enable */
+#define IRQ_REPLAY              0x00000800      /* IRQ has been replayed but not acked yet */
+#define IRQ_AUTODETECT          0x00001000      /* IRQ is being autodetected */
+#define IRQ_WAITING             0x00002000      /* IRQ not yet seen - for autodetection */
+#define IRQ_LEVEL               0x00004000      /* IRQ level triggered */
+#define IRQ_MASKED              0x00008000      /* IRQ masked - shouldn't be seen again */
+#define IRQ_PER_CPU             0x00010000      /* IRQ is per CPU */
+#define IRQ_NOPROBE             0x00020000      /* IRQ is not valid for probing */
+#define IRQ_NOREQUEST           0x00040000      /* IRQ cannot be requested */
+#define IRQ_NOAUTOEN            0x00080000      /* IRQ will not be enabled on request irq */
+#define IRQ_WAKEUP              0x00100000      /* IRQ triggers system wakeup */
+#define IRQ_MOVE_PENDING        0x00200000      /* need to re-target IRQ destination */
+#define IRQ_NO_BALANCING        0x00400000      /* IRQ is excluded from balancing */
+
 #ifdef CONFIG_IRQ_PER_CPU
 # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
+# define IRQ_NO_BALANCING_MASK  (IRQ_PER_CPU | IRQ_NO_BALANCING)
 #else
 # define CHECK_IRQ_PER_CPU(var) 0
+# define IRQ_NO_BALANCING_MASK  IRQ_NO_BALANCING
 #endif
 
-#define IRQ_NOPROBE             0x02000000      /* IRQ is not valid for probing */
-#define IRQ_NOREQUEST           0x04000000      /* IRQ cannot be requested */
-#define IRQ_NOAUTOEN            0x08000000      /* IRQ will not be enabled on request irq */
-#define IRQ_DELAYED_DISABLE     0x10000000      /* IRQ disable (masking) happens delayed. */
-#define IRQ_WAKEUP              0x20000000      /* IRQ triggers system wakeup */
-#define IRQ_MOVE_PENDING        0x40000000      /* need to re-target IRQ destination */
-
 struct proc_dir_entry;
 struct msi_desc;
 
@@ -127,6 +129,7 @@ struct irq_chip {
  *
  * @handle_irq:         highlevel irq-events handler [if NULL, __do_IRQ()]
  * @chip:               low level interrupt hardware access
+ * @msi_desc:           MSI descriptor
  * @handler_data:       per-IRQ data for the irq_chip methods
  * @chip_data:          platform-specific per-chip private data for the chip
  *                      methods, to allow shared chip implementations
@@ -235,11 +238,21 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask)
 
 #endif /* CONFIG_GENERIC_PENDING_IRQ */
 
+extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask);
+extern int irq_can_set_affinity(unsigned int irq);
+
 #else /* CONFIG_SMP */
 
 #define move_native_irq(x)
 #define move_masked_irq(x)
 
+static inline int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
+{
+        return -EINVAL;
+}
+
+static inline int irq_can_set_affinity(unsigned int irq) { return 0; }
+
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_IRQBALANCE
@@ -261,6 +274,11 @@ static inline int select_smp_affinity(unsigned int irq)
 
 extern int no_irq_affinity;
 
+static inline int irq_balancing_disabled(unsigned int irq)
+{
+        return irq_desc[irq].status & IRQ_NO_BALANCING_MASK;
+}
+
 /* Handle irq action chains: */
 extern int handle_IRQ_event(unsigned int irq, struct irqaction *action);