Quelle  hardirq.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HARDIRQ_H
#define _ASM_X86_HARDIRQ_H

#include <linux/threads.h>

typedef struct {
#if IS_ENABLED(CONFIG_KVM_INTEL)
 u8      kvm_cpu_l1tf_flush_l1d;
#endif
 unsigned int __nmi_count; /* arch dependent */
#ifdef CONFIG_X86_LOCAL_APIC
 unsigned int apic_timer_irqs; /* arch dependent */
 unsigned int irq_spurious_count;
 unsigned int icr_read_retry_count;
#endif
#if IS_ENABLED(CONFIG_KVM)
 unsigned int kvm_posted_intr_ipis;
 unsigned int kvm_posted_intr_wakeup_ipis;
 unsigned int kvm_posted_intr_nested_ipis;
#endif
 unsigned int x86_platform_ipis; /* arch dependent */
 unsigned int apic_perf_irqs;
 unsigned int apic_irq_work_irqs;
#ifdef CONFIG_SMP
 unsigned int irq_resched_count;
 unsigned int irq_call_count;
#endif
 unsigned int irq_tlb_count;
#ifdef CONFIG_X86_THERMAL_VECTOR
 unsigned int irq_thermal_count;
#endif
#ifdef CONFIG_X86_MCE_THRESHOLD
 unsigned int irq_threshold_count;
#endif
#ifdef CONFIG_X86_MCE_AMD
 unsigned int irq_deferred_error_count;
#endif
#ifdef CONFIG_X86_HV_CALLBACK_VECTOR
 unsigned int irq_hv_callback_count;
#endif
#if IS_ENABLED(CONFIG_HYPERV)
 unsigned int irq_hv_reenlightenment_count;
 unsigned int hyperv_stimer0_count;
#endif
#ifdef CONFIG_X86_POSTED_MSI
 unsigned int posted_msi_notification_count;
#endif
} ____cacheline_aligned irq_cpustat_t;

DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);

#ifdef CONFIG_X86_POSTED_MSI
DECLARE_PER_CPU_ALIGNED(struct pi_desc, posted_msi_pi_desc);
#endif
#define __ARCH_IRQ_STAT

#define inc_irq_stat(member) this_cpu_inc(irq_stat.member)

extern void ack_bad_irq(unsigned int irq);

extern u64 arch_irq_stat_cpu(unsigned int cpu);
#define arch_irq_stat_cpu arch_irq_stat_cpu

extern u64 arch_irq_stat(void);
#define arch_irq_stat  arch_irq_stat

DECLARE_PER_CPU_CACHE_HOT(u16, __softirq_pending);
#define local_softirq_pending_ref       __softirq_pending

#if IS_ENABLED(CONFIG_KVM_INTEL)
/*
 * This function is called from noinstr interrupt contexts
 * and must be inlined to not get instrumentation.
 */
static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void)
{
 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
}

static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void)
{
 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
}

static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void)
{
 return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
}
#else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
#endif /* IS_ENABLED(CONFIG_KVM_INTEL) */

#endif /* _ASM_X86_HARDIRQ_H */