mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
683b6c6f82
Pull irq code updates from Thomas Gleixner:
"The irq department proudly presents:
- Another tree wide sweep of irq infrastructure abuse. Clear winner
of the trainwreck engineering contest was:
#include "../../../kernel/irq/settings.h"
- Tree wide update of irq_set_affinity() callbacks which miss a cpu
online check when picking a single cpu out of the affinity mask.
- Tree wide consolidation of interrupt statistics.
- Updates to the threaded interrupt infrastructure to allow explicit
wakeup of the interrupt thread and a variant of synchronize_irq()
which synchronizes only the hard interrupt handler. Both are
needed to replace the homebrewn thread handling in the mmc/sdhci
code.
- New irq chip callbacks to allow proper support for GPIO based irqs.
The GPIO based interrupts need to request/release GPIO resources
from request/free_irq.
- A few new ARM interrupt chips. No revolutionary new hardware, just
differently wreckaged variations of the scheme.
- Small improvments, cleanups and updates all over the place"
I was hoping that that trainwreck engineering contest was a April Fools'
joke. But no.
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (68 commits)
irqchip: sun7i/sun6i: Disable NMI before registering the handler
ARM: sun7i/sun6i: dts: Fix IRQ number for sun6i NMI controller
ARM: sun7i/sun6i: irqchip: Update the documentation
ARM: sun7i/sun6i: dts: Add NMI irqchip support
ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controller
genirq: Export symbol no_action()
arm: omap: Fix typo in ams-delta-fiq.c
m68k: atari: Fix the last kernel_stat.h fallout
irqchip: sun4i: Simplify sun4i_irq_ack
irqchip: sun4i: Use handle_fasteoi_irq for all interrupts
genirq: procfs: Make smp_affinity values go+r
softirq: Add linux/irq.h to make it compile again
m68k: amiga: Add linux/irq.h to make it compile again
irqchip: sun4i: Don't ack IRQs > 0, fix acking of IRQ 0
irqchip: sun4i: Fix a comment about mask register initialization
irqchip: sun4i: Fix irq 0 not working
genirq: Add a new IRQCHIP_EOI_THREADED flag
genirq: Document IRQCHIP_ONESHOT_SAFE flag
ARM: sunxi: dt: Convert to the new irq controller compatibles
irqchip: sunxi: Change compatibles
...
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
#ifndef _LINUX_KERNEL_STAT_H
|
|
#define _LINUX_KERNEL_STAT_H
|
|
|
|
#include <linux/smp.h>
|
|
#include <linux/threads.h>
|
|
#include <linux/percpu.h>
|
|
#include <linux/cpumask.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/vtime.h>
|
|
#include <asm/irq.h>
|
|
#include <linux/cputime.h>
|
|
|
|
/*
|
|
* 'kernel_stat.h' contains the definitions needed for doing
|
|
* some kernel statistics (CPU usage, context switches ...),
|
|
* used by rstatd/perfmeter
|
|
*/
|
|
|
|
enum cpu_usage_stat {
|
|
CPUTIME_USER,
|
|
CPUTIME_NICE,
|
|
CPUTIME_SYSTEM,
|
|
CPUTIME_SOFTIRQ,
|
|
CPUTIME_IRQ,
|
|
CPUTIME_IDLE,
|
|
CPUTIME_IOWAIT,
|
|
CPUTIME_STEAL,
|
|
CPUTIME_GUEST,
|
|
CPUTIME_GUEST_NICE,
|
|
NR_STATS,
|
|
};
|
|
|
|
struct kernel_cpustat {
|
|
u64 cpustat[NR_STATS];
|
|
};
|
|
|
|
struct kernel_stat {
|
|
unsigned long irqs_sum;
|
|
unsigned int softirqs[NR_SOFTIRQS];
|
|
};
|
|
|
|
DECLARE_PER_CPU(struct kernel_stat, kstat);
|
|
DECLARE_PER_CPU(struct kernel_cpustat, kernel_cpustat);
|
|
|
|
/* Must have preemption disabled for this to be meaningful. */
|
|
#define kstat_this_cpu (&__get_cpu_var(kstat))
|
|
#define kcpustat_this_cpu (&__get_cpu_var(kernel_cpustat))
|
|
#define kstat_cpu(cpu) per_cpu(kstat, cpu)
|
|
#define kcpustat_cpu(cpu) per_cpu(kernel_cpustat, cpu)
|
|
|
|
extern unsigned long long nr_context_switches(void);
|
|
|
|
extern unsigned int kstat_irqs_cpu(unsigned int irq, int cpu);
|
|
extern void kstat_incr_irq_this_cpu(unsigned int irq);
|
|
|
|
static inline void kstat_incr_softirqs_this_cpu(unsigned int irq)
|
|
{
|
|
__this_cpu_inc(kstat.softirqs[irq]);
|
|
}
|
|
|
|
static inline unsigned int kstat_softirqs_cpu(unsigned int irq, int cpu)
|
|
{
|
|
return kstat_cpu(cpu).softirqs[irq];
|
|
}
|
|
|
|
/*
|
|
* Number of interrupts per specific IRQ source, since bootup
|
|
*/
|
|
extern unsigned int kstat_irqs(unsigned int irq);
|
|
|
|
/*
|
|
* Number of interrupts per cpu, since bootup
|
|
*/
|
|
static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
|
|
{
|
|
return kstat_cpu(cpu).irqs_sum;
|
|
}
|
|
|
|
/*
|
|
* Lock/unlock the current runqueue - to extract task statistics:
|
|
*/
|
|
extern unsigned long long task_delta_exec(struct task_struct *);
|
|
|
|
extern void account_user_time(struct task_struct *, cputime_t, cputime_t);
|
|
extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t);
|
|
extern void account_steal_time(cputime_t);
|
|
extern void account_idle_time(cputime_t);
|
|
|
|
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
|
|
static inline void account_process_tick(struct task_struct *tsk, int user)
|
|
{
|
|
vtime_account_user(tsk);
|
|
}
|
|
#else
|
|
extern void account_process_tick(struct task_struct *, int user);
|
|
#endif
|
|
|
|
extern void account_steal_ticks(unsigned long ticks);
|
|
extern void account_idle_ticks(unsigned long ticks);
|
|
|
|
#endif /* _LINUX_KERNEL_STAT_H */
|