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sparseirq: make some func to be used with genirq 

Impact: clean up sparseirq fallout on random.c

Ingo suggested to change some ifdef from SPARSE_IRQ to GENERIC_HARDIRQS
so we could some #ifdef later if all arch support genirq

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2009-01-07 15:03:13 -08:00 committed by Ingo Molnar
parent e8b722f487
commit d7e51e6689
5 changed files with 11 additions and 12 deletions
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2
drivers/char/random.c
View File

@ -558,7 +558,7 @@ struct timer_rand_state {
unsigned dont_count_entropy:1;
};
#ifndef CONFIG_SPARSE_IRQ
#ifndef CONFIG_GENERIC_HARDIRQS
static struct timer_rand_state *irq_timer_state[NR_IRQS];

2
drivers/pci/intr_remapping.c
View File

@ -20,7 +20,7 @@ struct irq_2_iommu {
u8 irte_mask;
};
#ifdef CONFIG_SPARSE_IRQ
#ifdef CONFIG_GENERIC_HARDIRQS
static struct irq_2_iommu *get_one_free_irq_2_iommu(int cpu)
{
struct irq_2_iommu *iommu;

6
include/linux/irq.h
View File

@ -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;
@ -202,13 +200,13 @@ 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);
#endif /* CONFIG_SPARSE_IRQ */
#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);

6
include/linux/kernel_stat.h
View File

@ -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])
@ -55,7 +55,7 @@ static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
#endif
#ifndef CONFIG_SPARSE_IRQ
#ifndef CONFIG_GENERIC_HARDIRQS
static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
return kstat_cpu(cpu).irqs[irq];

7
kernel/irq/handle.c
View File

@ -213,6 +213,7 @@ struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = {
}
};
static unsigned int kstat_irqs_all[NR_IRQS][NR_CPUS];
int __init early_irq_init(void)
{
struct irq_desc *desc;
@ -222,8 +223,10 @@ int __init early_irq_init(void)
desc = irq_desc;
count = ARRAY_SIZE(irq_desc);
for (i = 0; i < count; i++)
for (i = 0; i < count; i++) {
desc[i].irq = i;
desc[i].kstat_irqs = kstat_irqs_all[i];
}
return arch_early_irq_init();
}
@ -451,12 +454,10 @@ void early_init_irq_lock_class(void)
}
}
#ifdef CONFIG_SPARSE_IRQ
unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
{
struct irq_desc *desc = irq_to_desc(irq);
return desc ? desc->kstat_irqs[cpu] : 0;
}
#endif
EXPORT_SYMBOL(kstat_irqs_cpu);