7 files changed, 48 insertions, 42 deletions

diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index cba442ec3c66..f4af03404b97 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -9,7 +9,7 @@
 
 
 extern void synchronize_irq(unsigned int irq);
-extern void synchronize_hardirq(unsigned int irq);
+extern bool synchronize_hardirq(unsigned int irq);
 
 #if defined(CONFIG_TINY_RCU)
 
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 2e88580194f0..950ae4501826 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -39,8 +39,6 @@
  * These flags used only by the kernel as part of the
  * irq handling routines.
  *
- * IRQF_DISABLED - keep irqs disabled when calling the action handler.
- *                 DEPRECATED. This flag is a NOOP and scheduled to be removed
  * IRQF_SHARED - allow sharing the irq among several devices
  * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur
  * IRQF_TIMER - Flag to mark this interrupt as timer interrupt
@@ -64,7 +62,6 @@
  *                wakeup devices users need to implement wakeup detection in
  *                their interrupt handlers.
  */
-#define IRQF_DISABLED           0x00000020
 #define IRQF_SHARED             0x00000080
 #define IRQF_PROBE_SHARED       0x00000100
 #define __IRQF_TIMER            0x00000200
@@ -191,6 +188,7 @@ extern void devm_free_irq(struct device *dev, unsigned int irq, void *dev_id);
 #endif
 
 extern void disable_irq_nosync(unsigned int irq);
+extern bool disable_hardirq(unsigned int irq);
 extern void disable_irq(unsigned int irq);
 extern void disable_percpu_irq(unsigned int irq);
 extern void enable_irq(unsigned int irq);
@@ -363,6 +361,20 @@ static inline int disable_irq_wake(unsigned int irq)
         return irq_set_irq_wake(irq, 0);
 }
 
+/*
+ * irq_get_irqchip_state/irq_set_irqchip_state specific flags
+ */
+enum irqchip_irq_state {
+        IRQCHIP_STATE_PENDING,          /* Is interrupt pending? */
+        IRQCHIP_STATE_ACTIVE,           /* Is interrupt in progress? */
+        IRQCHIP_STATE_MASKED,           /* Is interrupt masked? */
+        IRQCHIP_STATE_LINE_LEVEL,       /* Is IRQ line high? */
+};
+
+extern int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+                                 bool *state);
+extern int irq_set_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
+                                 bool state);
 
 #ifdef CONFIG_IRQ_FORCED_THREADING
 extern bool force_irqthreads;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index d09ec7a1243e..62c6901cab55 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -30,6 +30,7 @@
 struct seq_file;
 struct module;
 struct msi_msg;
+enum irqchip_irq_state;
 
 /*
  * IRQ line status.
@@ -324,6 +325,8 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
  *                              irq_request_resources
  * @irq_compose_msi_msg:        optional to compose message content for MSI
  * @irq_write_msi_msg:  optional to write message content for MSI
+ * @irq_get_irqchip_state:      return the internal state of an interrupt
+ * @irq_set_irqchip_state:      set the internal state of a interrupt
  * @flags:              chip specific flags
  */
 struct irq_chip {
@@ -363,6 +366,9 @@ struct irq_chip {
         void            (*irq_compose_msi_msg)(struct irq_data *data, struct msi_msg *msg);
         void            (*irq_write_msi_msg)(struct irq_data *data, struct msi_msg *msg);
 
+        int             (*irq_get_irqchip_state)(struct irq_data *data, enum irqchip_irq_state which, bool *state);
+        int             (*irq_set_irqchip_state)(struct irq_data *data, enum irqchip_irq_state which, bool state);
+
         unsigned long   flags;
 };
 
@@ -460,6 +466,7 @@ extern void irq_chip_eoi_parent(struct irq_data *data);
 extern int irq_chip_set_affinity_parent(struct irq_data *data,
                                         const struct cpumask *dest,
                                         bool force);
+extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on);
 #endif
 
 /* Handling of unhandled and spurious interrupts: */
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 71d706d5f169..36ec4ae74634 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -97,6 +97,7 @@ struct device_node;
 
 extern struct irq_chip gic_arch_extn;
 
+void gic_set_irqchip_flags(unsigned long flags);
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
                     u32 offset, struct device_node *);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
@@ -115,11 +116,5 @@ int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
 unsigned long gic_get_sgir_physaddr(void);
 
-extern const struct irq_domain_ops *gic_routable_irq_domain_ops;
-static inline void __init register_routable_domain_ops
-                                        (const struct irq_domain_ops *ops)
-{
-        gic_routable_irq_domain_ops = ops;
-}
 #endif /* __ASSEMBLY */
 #endif
diff --git a/include/linux/irqchip/irq-crossbar.h b/include/linux/irqchip/irq-crossbar.h
deleted file mode 100644
index e5537b81df8d..000000000000
--- a/include/linux/irqchip/irq-crossbar.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- *  drivers/irqchip/irq-crossbar.h
- *
- *  Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-int irqcrossbar_init(void);
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
index e6a6aac451db..3ea2e4754c40 100644
--- a/include/linux/irqchip/mips-gic.h
+++ b/include/linux/irqchip/mips-gic.h
@@ -240,6 +240,8 @@ extern unsigned int gic_get_count_width(void);
 extern cycle_t gic_read_compare(void);
 extern void gic_write_compare(cycle_t cnt);
 extern void gic_write_cpu_compare(cycle_t cnt, int cpu);
+extern void gic_start_count(void);
+extern void gic_stop_count(void);
 extern void gic_send_ipi(unsigned int intr);
 extern unsigned int plat_ipi_call_int_xlate(unsigned int);
 extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index d176d658fe25..5dd1272d1ab2 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -85,7 +85,7 @@
  * The local_irq_*() APIs are equal to the raw_local_irq*()
  * if !TRACE_IRQFLAGS.
  */
-#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
+#ifdef CONFIG_TRACE_IRQFLAGS
 #define local_irq_enable() \
         do { trace_hardirqs_on(); raw_local_irq_enable(); } while (0)
 #define local_irq_disable() \
@@ -107,22 +107,6 @@
                         raw_local_irq_restore(flags);   \
                 }                                       \
         } while (0)
-#define local_save_flags(flags)                         \
-        do {                                            \
-                raw_local_save_flags(flags);            \
-        } while (0)
-
-#define irqs_disabled_flags(flags)                      \
-        ({                                              \
-                raw_irqs_disabled_flags(flags);         \
-        })
-
-#define irqs_disabled()                                 \
-        ({                                              \
-                unsigned long _flags;                   \
-                raw_local_save_flags(_flags);           \
-                raw_irqs_disabled_flags(_flags);        \
-        })
 
 #define safe_halt()                             \
         do {                                    \
@@ -131,7 +115,7 @@
         } while (0)
 
 
-#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
+#else /* !CONFIG_TRACE_IRQFLAGS */
 
 #define local_irq_enable()      do { raw_local_irq_enable(); } while (0)
 #define local_irq_disable()     do { raw_local_irq_disable(); } while (0)
@@ -140,11 +124,28 @@
                 raw_local_irq_save(flags);                      \
         } while (0)
 #define local_irq_restore(flags) do { raw_local_irq_restore(flags); } while (0)
-#define local_save_flags(flags) do { raw_local_save_flags(flags); } while (0)
-#define irqs_disabled()         (raw_irqs_disabled())
-#define irqs_disabled_flags(flags) (raw_irqs_disabled_flags(flags))
 #define safe_halt()             do { raw_safe_halt(); } while (0)
 
+#endif /* CONFIG_TRACE_IRQFLAGS */
+
+#define local_save_flags(flags) raw_local_save_flags(flags)
+
+/*
+ * Some architectures don't define arch_irqs_disabled(), so even if either
+ * definition would be fine we need to use different ones for the time being
+ * to avoid build issues.
+ */
+#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
+#define irqs_disabled()                                 \
+        ({                                              \
+                unsigned long _flags;                   \
+                raw_local_save_flags(_flags);           \
+                raw_irqs_disabled_flags(_flags);        \
+        })
+#else /* !CONFIG_TRACE_IRQFLAGS_SUPPORT */
+#define irqs_disabled() raw_irqs_disabled()
 #endif /* CONFIG_TRACE_IRQFLAGS_SUPPORT */
 
+#define irqs_disabled_flags(flags) raw_irqs_disabled_flags(flags)
+
 #endif