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 #include <asm/current.h>
   7
   8 typedef struct {
   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 #if IS_ENABLED(CONFIG_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 #ifdef CONFIG_X86_HV_CALLBACK_VECTOR
  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 #ifdef CONFIG_X86_POSTED_MSI
  48         unsigned int posted_msi_notification_count;
  49 #endif
  50 } ____cacheline_aligned irq_cpustat_t;
  51
  52 DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
  53
  54 #ifdef CONFIG_X86_POSTED_MSI
  55 DECLARE_PER_CPU_ALIGNED(struct pi_desc, posted_msi_pi_desc);
  56 #endif
  57 #define __ARCH_IRQ_STAT
  58
  59 #define inc_irq_stat(member)    this_cpu_inc(irq_stat.member)
  60
  61 extern void ack_bad_irq(unsigned int irq);
  62
  63 extern u64 arch_irq_stat_cpu(unsigned int cpu);
  64 #define arch_irq_stat_cpu       arch_irq_stat_cpu
  65
  66 extern u64 arch_irq_stat(void);
  67 #define arch_irq_stat           arch_irq_stat
  68
  69 #define local_softirq_pending_ref       pcpu_hot.softirq_pending
  70
  71 #if IS_ENABLED(CONFIG_KVM_INTEL)
  72 static inline void kvm_set_cpu_l1tf_flush_l1d(void)
  73 {
  74         __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
  75 }
  76
  77 static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void)
  78 {
  79         __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
  80 }
  81
  82 static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void)
  83 {
  84         return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
  85 }
  86 #else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
  87 static inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
  88 #endif /* IS_ENABLED(CONFIG_KVM_INTEL) */
  89
  90 #endif /* _ASM_X86_HARDIRQ_H */