mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 03:36:59 +07:00
ecb23dc6f2
The pv_time_ops structure contains a function pointer for the "steal_clock" functionality used only by KVM and Xen on ARM. Xen on x86 uses its own mechanism to account for the "stolen" time a thread wasn't able to run due to hypervisor scheduling. Add support in Xen arch independent time handling for this feature by moving it out of the arm arch into drivers/xen and remove the x86 Xen hack. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
98 lines
2.4 KiB
C
98 lines
2.4 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 this_cpu_ptr(&kstat)
|
|
#define kcpustat_this_cpu this_cpu_ptr(&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);
|
|
extern unsigned int kstat_irqs_usr(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;
|
|
}
|
|
|
|
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_idle_ticks(unsigned long ticks);
|
|
|
|
#endif /* _LINUX_KERNEL_STAT_H */
|