LXR linux/arch/x86/include/asm/hardirq.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_X86_HARDIRQ_H
   3#define _ASM_X86_HARDIRQ_H
   4
   5#include <linux/threads.h>
   6
   7typedef struct {
   8        u16          __softirq_pending;
   9#if IS_ENABLED(CONFIG_KVM_INTEL)
  10        u8           kvm_cpu_l1tf_flush_l1d;
  11#endif
  12        unsigned int __nmi_count;       /* arch dependent */
  13#ifdef CONFIG_X86_LOCAL_APIC
  14        unsigned int apic_timer_irqs;   /* arch dependent */
  15        unsigned int irq_spurious_count;
  16        unsigned int icr_read_retry_count;
  17#endif
  18#ifdef CONFIG_HAVE_KVM
  19        unsigned int kvm_posted_intr_ipis;
  20        unsigned int kvm_posted_intr_wakeup_ipis;
  21        unsigned int kvm_posted_intr_nested_ipis;
  22#endif
  23        unsigned int x86_platform_ipis; /* arch dependent */
  24        unsigned int apic_perf_irqs;
  25        unsigned int apic_irq_work_irqs;
  26#ifdef CONFIG_SMP
  27        unsigned int irq_resched_count;
  28        unsigned int irq_call_count;
  29#endif
  30        unsigned int irq_tlb_count;
  31#ifdef CONFIG_X86_THERMAL_VECTOR
  32        unsigned int irq_thermal_count;
  33#endif
  34#ifdef CONFIG_X86_MCE_THRESHOLD
  35        unsigned int irq_threshold_count;
  36#endif
  37#ifdef CONFIG_X86_MCE_AMD
  38        unsigned int irq_deferred_error_count;
  39#endif
  40#if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
  41        unsigned int irq_hv_callback_count;
  42#endif
  43#if IS_ENABLED(CONFIG_HYPERV)
  44        unsigned int irq_hv_reenlightenment_count;
  45        unsigned int hyperv_stimer0_count;
  46#endif
  47} ____cacheline_aligned irq_cpustat_t;
  48
  49DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
  50
  51#define __ARCH_IRQ_STAT
  52
  53#define inc_irq_stat(member)    this_cpu_inc(irq_stat.member)
  54
  55extern void ack_bad_irq(unsigned int irq);
  56
  57extern u64 arch_irq_stat_cpu(unsigned int cpu);
  58#define arch_irq_stat_cpu       arch_irq_stat_cpu
  59
  60extern u64 arch_irq_stat(void);
  61#define arch_irq_stat           arch_irq_stat
  62
  63
  64#if IS_ENABLED(CONFIG_KVM_INTEL)
  65static inline void kvm_set_cpu_l1tf_flush_l1d(void)
  66{
  67        __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
  68}
  69
  70static inline void kvm_clear_cpu_l1tf_flush_l1d(void)
  71{
  72        __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
  73}
  74
  75static inline bool kvm_get_cpu_l1tf_flush_l1d(void)
  76{
  77        return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
  78}
  79#else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
  80static inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
  81#endif /* IS_ENABLED(CONFIG_KVM_INTEL) */
  82
  83#endif /* _ASM_X86_HARDIRQ_H */
  84