mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 00:01:35 +00:00
9301975ec2
This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu and x86/uv. The sparseirq branch is just preliminary groundwork: no sparse IRQs are actually implemented by this tree anymore - just the new APIs are added while keeping the old way intact as well (the new APIs map 1:1 to irq_desc[]). The 'real' sparse IRQ support will then be a relatively small patch ontop of this - with a v2.6.29 merge target. * 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits) genirq: improve include files intr_remapping: fix typo io_apic: make irq_mis_count available on 64-bit too genirq: fix name space collisions of nr_irqs in arch/* genirq: fix name space collision of nr_irqs in autoprobe.c genirq: use iterators for irq_desc loops proc: fixup irq iterator genirq: add reverse iterator for irq_desc x86: move ack_bad_irq() to irq.c x86: unify show_interrupts() and proc helpers x86: cleanup show_interrupts genirq: cleanup the sparseirq modifications genirq: remove artifacts from sparseirq removal genirq: revert dynarray genirq: remove irq_to_desc_alloc genirq: remove sparse irq code genirq: use inline function for irq_to_desc genirq: consolidate nr_irqs and for_each_irq_desc() x86: remove sparse irq from Kconfig genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n ...
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
#ifndef _LINUX_KERNEL_STAT_H
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#define _LINUX_KERNEL_STAT_H
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#include <linux/smp.h>
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#include <linux/threads.h>
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#include <linux/percpu.h>
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#include <linux/cpumask.h>
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#include <asm/irq.h>
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#include <asm/cputime.h>
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/*
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* 'kernel_stat.h' contains the definitions needed for doing
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* some kernel statistics (CPU usage, context switches ...),
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* used by rstatd/perfmeter
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*/
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struct cpu_usage_stat {
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cputime64_t user;
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cputime64_t nice;
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cputime64_t system;
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cputime64_t softirq;
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cputime64_t irq;
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cputime64_t idle;
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cputime64_t iowait;
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cputime64_t steal;
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cputime64_t guest;
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};
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struct kernel_stat {
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struct cpu_usage_stat cpustat;
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unsigned int irqs[NR_IRQS];
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};
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DECLARE_PER_CPU(struct kernel_stat, kstat);
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#define kstat_cpu(cpu) per_cpu(kstat, cpu)
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/* Must have preemption disabled for this to be meaningful. */
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#define kstat_this_cpu __get_cpu_var(kstat)
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extern unsigned long long nr_context_switches(void);
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struct irq_desc;
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static inline void kstat_incr_irqs_this_cpu(unsigned int irq,
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struct irq_desc *desc)
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{
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kstat_this_cpu.irqs[irq]++;
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}
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static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu)
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{
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return kstat_cpu(cpu).irqs[irq];
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}
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/*
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* Number of interrupts per specific IRQ source, since bootup
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*/
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static inline unsigned int kstat_irqs(unsigned int irq)
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{
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unsigned int sum = 0;
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int cpu;
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for_each_possible_cpu(cpu)
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sum += kstat_irqs_cpu(irq, cpu);
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return sum;
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}
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extern unsigned long long task_delta_exec(struct task_struct *);
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extern void account_user_time(struct task_struct *, cputime_t);
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extern void account_user_time_scaled(struct task_struct *, cputime_t);
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extern void account_system_time(struct task_struct *, int, cputime_t);
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extern void account_system_time_scaled(struct task_struct *, cputime_t);
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extern void account_steal_time(struct task_struct *, cputime_t);
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#endif /* _LINUX_KERNEL_STAT_H */
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