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
   7 typedef 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 } ____cacheline_aligned irq_cpustat_t;
  44
  45 DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
  46
  47 #define __ARCH_IRQ_STAT
  48
  49 #define inc_irq_stat(member)    this_cpu_inc(irq_stat.member)
  50
  51 #define local_softirq_pending() this_cpu_read(irq_stat.__softirq_pending)
  52
  53 #define __ARCH_SET_SOFTIRQ_PENDING
  54
  55 #define set_softirq_pending(x)  \
  56                 this_cpu_write(irq_stat.__softirq_pending, (x))
  57 #define or_softirq_pending(x)   this_cpu_or(irq_stat.__softirq_pending, (x))
  58
  59 extern void ack_bad_irq(unsigned int irq);
  60
  61 extern u64 arch_irq_stat_cpu(unsigned int cpu);
  62 #define arch_irq_stat_cpu       arch_irq_stat_cpu
  63
  64 extern u64 arch_irq_stat(void);
  65 #define arch_irq_stat           arch_irq_stat
  66
  67
  68 #if IS_ENABLED(CONFIG_KVM_INTEL)
  69 static inline void kvm_set_cpu_l1tf_flush_l1d(void)
  70 {
  71         __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
  72 }
  73
  74 static inline void kvm_clear_cpu_l1tf_flush_l1d(void)
  75 {
  76         __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
  77 }
  78
  79 static inline bool kvm_get_cpu_l1tf_flush_l1d(void)
  80 {
  81         return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
  82 }
  83 #else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
  84 static inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
  85 #endif /* IS_ENABLED(CONFIG_KVM_INTEL) */
  86
  87 #endif /* _ASM_X86_HARDIRQ_H */