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-rw-r--r--include/linux/interrupt.h17
-rw-r--r--include/linux/irq.h16
-rw-r--r--include/linux/irqnr.h8
-rw-r--r--include/linux/irqreturn.h28
-rw-r--r--include/linux/kernel_stat.h13
5 files changed, 45 insertions, 37 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 9127f6b51a3..91658d07659 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -61,6 +61,17 @@
typedef irqreturn_t (*irq_handler_t)(int, void *);
+/**
+ * struct irqaction - per interrupt action descriptor
+ * @handler: interrupt handler function
+ * @flags: flags (see IRQF_* above)
+ * @mask: no comment as it is useless and about to be removed
+ * @name: name of the device
+ * @dev_id: cookie to identify the device
+ * @next: pointer to the next irqaction for shared interrupts
+ * @irq: interrupt number
+ * @dir: pointer to the proc/irq/NN/name entry
+ */
struct irqaction {
irq_handler_t handler;
unsigned long flags;
@@ -462,6 +473,12 @@ static inline void init_irq_proc(void)
}
#endif
+#if defined(CONFIG_GENERIC_HARDIRQS) && defined(CONFIG_DEBUG_SHIRQ)
+extern void debug_poll_all_shared_irqs(void);
+#else
+static inline void debug_poll_all_shared_irqs(void) { }
+#endif
+
int show_interrupts(struct seq_file *p, void *v);
struct irq_desc;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f899b502f18..6db939a575b 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -160,12 +160,10 @@ struct irq_2_iommu;
*/
struct irq_desc {
unsigned int irq;
-#ifdef CONFIG_SPARSE_IRQ
struct timer_rand_state *timer_rand_state;
unsigned int *kstat_irqs;
-# ifdef CONFIG_INTR_REMAP
+#ifdef CONFIG_INTR_REMAP
struct irq_2_iommu *irq_2_iommu;
-# endif
#endif
irq_flow_handler_t handle_irq;
struct irq_chip *chip;
@@ -202,12 +200,6 @@ extern void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc
extern struct irq_desc irq_desc[NR_IRQS];
#else /* CONFIG_SPARSE_IRQ */
extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int cpu);
-
-#define kstat_irqs_this_cpu(DESC) \
- ((DESC)->kstat_irqs[smp_processor_id()])
-#define kstat_incr_irqs_this_cpu(irqno, DESC) \
- ((DESC)->kstat_irqs[smp_processor_id()]++)
-
#endif /* CONFIG_SPARSE_IRQ */
extern struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu);
@@ -226,7 +218,6 @@ irq_remap_to_desc(unsigned int irq, struct irq_desc *desc)
* Migration helpers for obsolete names, they will go away:
*/
#define hw_interrupt_type irq_chip
-typedef struct irq_chip hw_irq_controller;
#define no_irq_type no_irq_chip
typedef struct irq_desc irq_desc_t;
@@ -236,6 +227,7 @@ typedef struct irq_desc irq_desc_t;
#include <asm/hw_irq.h>
extern int setup_irq(unsigned int irq, struct irqaction *new);
+extern void remove_irq(unsigned int irq, struct irqaction *act);
#ifdef CONFIG_GENERIC_HARDIRQS
@@ -280,7 +272,7 @@ static inline int irq_balancing_disabled(unsigned int irq)
}
/* Handle irq action chains: */
-extern int handle_IRQ_event(unsigned int irq, struct irqaction *action);
+extern irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action);
/*
* Built-in IRQ handlers for various IRQ types,
@@ -325,7 +317,7 @@ static inline void generic_handle_irq(unsigned int irq)
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
- int action_ret);
+ irqreturn_t action_ret);
/* Resending of interrupts :*/
void check_irq_resend(struct irq_desc *desc, unsigned int irq);
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 86af92e9e84..52ebbb4b161 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -28,13 +28,17 @@ extern struct irq_desc *irq_to_desc(unsigned int irq);
# define for_each_irq_desc(irq, desc) \
for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
irq++, desc = irq_to_desc(irq)) \
- if (desc)
+ if (!desc) \
+ ; \
+ else
# define for_each_irq_desc_reverse(irq, desc) \
for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
irq--, desc = irq_to_desc(irq)) \
- if (desc)
+ if (!desc) \
+ ; \
+ else
#endif /* CONFIG_GENERIC_HARDIRQS */
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index 881883c2009..c5584ca5b8c 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -1,25 +1,17 @@
-/* irqreturn.h */
#ifndef _LINUX_IRQRETURN_H
#define _LINUX_IRQRETURN_H
-/*
- * For 2.4.x compatibility, 2.4.x can use
- *
- * typedef void irqreturn_t;
- * #define IRQ_NONE
- * #define IRQ_HANDLED
- * #define IRQ_RETVAL(x)
- *
- * To mix old-style and new-style irq handler returns.
- *
- * IRQ_NONE means we didn't handle it.
- * IRQ_HANDLED means that we did have a valid interrupt and handled it.
- * IRQ_RETVAL(x) selects on the two depending on x being non-zero (for handled)
+/**
+ * enum irqreturn
+ * @IRQ_NONE interrupt was not from this device
+ * @IRQ_HANDLED interrupt was handled by this device
*/
-typedef int irqreturn_t;
+enum irqreturn {
+ IRQ_NONE,
+ IRQ_HANDLED,
+};
-#define IRQ_NONE (0)
-#define IRQ_HANDLED (1)
-#define IRQ_RETVAL(x) ((x) != 0)
+typedef enum irqreturn irqreturn_t;
+#define IRQ_RETVAL(x) ((x) != IRQ_NONE)
#endif
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 570d2041311..0c8b89f28a9 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -28,7 +28,7 @@ struct cpu_usage_stat {
struct kernel_stat {
struct cpu_usage_stat cpustat;
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
unsigned int irqs[NR_IRQS];
#endif
};
@@ -41,7 +41,7 @@ DECLARE_PER_CPU(struct kernel_stat, kstat);
extern unsigned long long nr_context_switches(void);
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
#define kstat_irqs_this_cpu(irq) \
(kstat_this_cpu.irqs[irq])
@@ -52,16 +52,19 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
{
kstat_this_cpu.irqs[irq]++;
}
-#endif
-
-#ifndef CONFIG_SPARSE_IRQ
static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
return kstat_cpu(cpu).irqs[irq];
}
#else
+#include <linux/irq.h>
extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
+#define kstat_irqs_this_cpu(DESC) \
+ ((DESC)->kstat_irqs[smp_processor_id()])
+#define kstat_incr_irqs_this_cpu(irqno, DESC) \
+ ((DESC)->kstat_irqs[smp_processor_id()]++)
+
#endif
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-26 11:27:01 +0000