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 #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 #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 } ____cacheline_aligned irq_cpustat_t; 48 49 DECLARE_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 55 extern void ack_bad_irq(unsigned int irq); 56 57 extern u64 arch_irq_stat_cpu(unsigned int cpu); 58 #define arch_irq_stat_cpu arch_irq_stat_cpu 59 60 extern u64 arch_irq_stat(void); 61 #define arch_irq_stat arch_irq_stat 62 63 #define local_softirq_pending_ref pcpu_hot.softirq_pending 64 65 #if IS_ENABLED(CONFIG_KVM_INTEL) 66 /* 67 * This function is called from noinstr interrupt contexts 68 * and must be inlined to not get instrumentation. 69 */ kvm_set_cpu_l1tf_flush_l1d(void)70static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void) 71 { 72 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1); 73 } 74 kvm_clear_cpu_l1tf_flush_l1d(void)75static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void) 76 { 77 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0); 78 } 79 kvm_get_cpu_l1tf_flush_l1d(void)80static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void) 81 { 82 return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d); 83 } 84 #else /* !IS_ENABLED(CONFIG_KVM_INTEL) */ kvm_set_cpu_l1tf_flush_l1d(void)85static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void) { } 86 #endif /* IS_ENABLED(CONFIG_KVM_INTEL) */ 87 88 #endif /* _ASM_X86_HARDIRQ_H */ 89