Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/linux/cpu_rmap.h b/include/linux/cpu_rmap.h
index 1739510..bdd18ca 100644
--- a/include/linux/cpu_rmap.h
+++ b/include/linux/cpu_rmap.h
@@ -52,8 +52,6 @@
return rmap->obj[rmap->near[cpu].index];
}
-#ifdef CONFIG_GENERIC_HARDIRQS
-
/**
* alloc_irq_cpu_rmap - allocate CPU affinity reverse-map for IRQs
* @size: Number of objects to be mapped
@@ -68,5 +66,4 @@
extern int irq_cpu_rmap_add(struct cpu_rmap *rmap, int irq);
-#endif
#endif /* __LINUX_CPU_RMAP_H */
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index ccfe17c..1e04106 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -7,11 +7,7 @@
#include <linux/vtime.h>
-#if defined(CONFIG_SMP) || defined(CONFIG_GENERIC_HARDIRQS)
extern void synchronize_irq(unsigned int irq);
-#else
-# define synchronize_irq(irq) barrier()
-#endif
#if defined(CONFIG_TINY_RCU)
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5fa5afe..5e865b5 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -120,7 +120,6 @@
extern irqreturn_t no_action(int cpl, void *dev_id);
-#ifdef CONFIG_GENERIC_HARDIRQS
extern int __must_check
request_threaded_irq(unsigned int irq, irq_handler_t handler,
irq_handler_t thread_fn,
@@ -140,40 +139,6 @@
extern int __must_check
request_percpu_irq(unsigned int irq, irq_handler_t handler,
const char *devname, void __percpu *percpu_dev_id);
-#else
-
-extern int __must_check
-request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags,
- const char *name, void *dev);
-
-/*
- * Special function to avoid ifdeffery in kernel/irq/devres.c which
- * gets magically built by GENERIC_HARDIRQS=n architectures (sparc,
- * m68k). I really love these $@%#!* obvious Makefile references:
- * ../../../kernel/irq/devres.o
- */
-static inline int __must_check
-request_threaded_irq(unsigned int irq, irq_handler_t handler,
- irq_handler_t thread_fn,
- unsigned long flags, const char *name, void *dev)
-{
- return request_irq(irq, handler, flags, name, dev);
-}
-
-static inline int __must_check
-request_any_context_irq(unsigned int irq, irq_handler_t handler,
- unsigned long flags, const char *name, void *dev_id)
-{
- return request_irq(irq, handler, flags, name, dev_id);
-}
-
-static inline int __must_check
-request_percpu_irq(unsigned int irq, irq_handler_t handler,
- const char *devname, void __percpu *percpu_dev_id)
-{
- return request_irq(irq, handler, 0, devname, percpu_dev_id);
-}
-#endif
extern void free_irq(unsigned int, void *);
extern void free_percpu_irq(unsigned int, void __percpu *);
@@ -221,7 +186,6 @@
extern void enable_percpu_irq(unsigned int irq, unsigned int type);
/* The following three functions are for the core kernel use only. */
-#ifdef CONFIG_GENERIC_HARDIRQS
extern void suspend_device_irqs(void);
extern void resume_device_irqs(void);
#ifdef CONFIG_PM_SLEEP
@@ -229,13 +193,8 @@
#else
static inline int check_wakeup_irqs(void) { return 0; }
#endif
-#else
-static inline void suspend_device_irqs(void) { };
-static inline void resume_device_irqs(void) { };
-static inline int check_wakeup_irqs(void) { return 0; }
-#endif
-#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
+#if defined(CONFIG_SMP)
extern cpumask_var_t irq_default_affinity;
@@ -287,9 +246,8 @@
{
return -EINVAL;
}
-#endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */
+#endif /* CONFIG_SMP */
-#ifdef CONFIG_GENERIC_HARDIRQS
/*
* Special lockdep variants of irq disabling/enabling.
* These should be used for locking constructs that
@@ -354,33 +312,6 @@
return irq_set_irq_wake(irq, 0);
}
-#else /* !CONFIG_GENERIC_HARDIRQS */
-/*
- * NOTE: non-genirq architectures, if they want to support the lock
- * validator need to define the methods below in their asm/irq.h
- * files, under an #ifdef CONFIG_LOCKDEP section.
- */
-#ifndef CONFIG_LOCKDEP
-# define disable_irq_nosync_lockdep(irq) disable_irq_nosync(irq)
-# define disable_irq_nosync_lockdep_irqsave(irq, flags) \
- disable_irq_nosync(irq)
-# define disable_irq_lockdep(irq) disable_irq(irq)
-# define enable_irq_lockdep(irq) enable_irq(irq)
-# define enable_irq_lockdep_irqrestore(irq, flags) \
- enable_irq(irq)
-# endif
-
-static inline int enable_irq_wake(unsigned int irq)
-{
- return 0;
-}
-
-static inline int disable_irq_wake(unsigned int irq)
-{
- return 0;
-}
-#endif /* CONFIG_GENERIC_HARDIRQS */
-
#ifdef CONFIG_IRQ_FORCED_THREADING
extern bool force_irqthreads;
@@ -655,7 +586,7 @@
* if more than one irq occurred.
*/
-#if defined(CONFIG_GENERIC_HARDIRQS) && !defined(CONFIG_GENERIC_IRQ_PROBE)
+#if !defined(CONFIG_GENERIC_IRQ_PROBE)
static inline unsigned long probe_irq_on(void)
{
return 0;
diff --git a/include/linux/irq.h b/include/linux/irq.h
index f04d3ba..56bb0dc 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -382,8 +382,6 @@
extern void irq_cpu_offline(void);
extern int __irq_set_affinity_locked(struct irq_data *data, const struct cpumask *cpumask);
-#ifdef CONFIG_GENERIC_HARDIRQS
-
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
void irq_move_irq(struct irq_data *data);
void irq_move_masked_irq(struct irq_data *data);
@@ -802,11 +800,4 @@
static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
#endif
-#else /* !CONFIG_GENERIC_HARDIRQS */
-
-extern struct msi_desc *irq_get_msi_desc(unsigned int irq);
-extern int irq_set_msi_desc(unsigned int irq, struct msi_desc *entry);
-
-#endif /* CONFIG_GENERIC_HARDIRQS */
-
#endif /* _LINUX_IRQ_H */
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 623325e..56fb646 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -76,8 +76,6 @@
extern struct irq_desc irq_desc[NR_IRQS];
#endif
-#ifdef CONFIG_GENERIC_HARDIRQS
-
static inline struct irq_data *irq_desc_get_irq_data(struct irq_desc *desc)
{
return &desc->irq_data;
@@ -173,6 +171,5 @@
desc->preflow_handler = handler;
}
#endif
-#endif
#endif
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 0a2dc46..fdd5cc1 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -4,23 +4,6 @@
#include <uapi/linux/irqnr.h>
-#ifndef CONFIG_GENERIC_HARDIRQS
-#include <asm/irq.h>
-
-/*
- * Wrappers for non-genirq architectures:
- */
-#define nr_irqs NR_IRQS
-#define irq_to_desc(irq) (&irq_desc[irq])
-
-# define for_each_irq_desc(irq, desc) \
- for (irq = 0; irq < nr_irqs; irq++)
-
-# define for_each_irq_desc_reverse(irq, desc) \
- for (irq = nr_irqs - 1; irq >= 0; irq--)
-
-#else /* CONFIG_GENERIC_HARDIRQS */
-
extern int nr_irqs;
extern struct irq_desc *irq_to_desc(unsigned int irq);
unsigned int irq_get_next_irq(unsigned int offset);
@@ -50,8 +33,6 @@
for (irq = irq_get_next_irq(0); irq < nr_irqs; \
irq = irq_get_next_irq(irq + 1))
-#endif /* CONFIG_GENERIC_HARDIRQS */
-
#define for_each_irq_nr(irq) \
for (irq = 0; irq < nr_irqs; irq++)
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ed5f6ed..51c72be 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -36,9 +36,6 @@
};
struct kernel_stat {
-#ifndef CONFIG_GENERIC_HARDIRQS
- unsigned int irqs[NR_IRQS];
-#endif
unsigned long irqs_sum;
unsigned int softirqs[NR_SOFTIRQS];
};
@@ -54,22 +51,6 @@
extern unsigned long long nr_context_switches(void);
-#ifndef CONFIG_GENERIC_HARDIRQS
-
-struct irq_desc;
-
-static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
- struct irq_desc *desc)
-{
- __this_cpu_inc(kstat.irqs[irq]);
- __this_cpu_inc(kstat.irqs_sum);
-}
-
-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);
@@ -79,8 +60,6 @@
__this_cpu_inc(kstat.irqs_sum); \
} while (0)
-#endif
-
static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
{
__this_cpu_inc(kstat.softirqs[irq]);
@@ -94,20 +73,7 @@
/*
* Number of interrupts per specific IRQ source, since bootup
*/
-#ifndef CONFIG_GENERIC_HARDIRQS
-static inline unsigned int kstat_irqs(unsigned int irq)
-{
- unsigned int sum = 0;
- int cpu;
-
- for_each_possible_cpu(cpu)
- sum += kstat_irqs_cpu(irq, cpu);
-
- return sum;
-}
-#else
extern unsigned int kstat_irqs(unsigned int irq);
-#endif
/*
* Number of interrupts per cpu, since bootup