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 #if IS_ENABLED(CONFIG_KVM_INTEL) 9 u8 kvm_cpu_l1tf_flush_l1d; 10 #endif 11 unsigned int __nmi_count; /* arch dependent */ 12 #ifdef CONFIG_X86_LOCAL_APIC 13 unsigned int apic_timer_irqs; /* arch dependent */ 14 unsigned int irq_spurious_count; 15 unsigned int icr_read_retry_count; 16 #endif 17 #if IS_ENABLED(CONFIG_KVM) 18 unsigned int kvm_posted_intr_ipis; 19 unsigned int kvm_posted_intr_wakeup_ipis; 20 unsigned int kvm_posted_intr_nested_ipis; 21 #endif 22 unsigned int x86_platform_ipis; /* arch dependent */ 23 unsigned int apic_perf_irqs; 24 unsigned int apic_irq_work_irqs; 25 #ifdef CONFIG_SMP 26 unsigned int irq_resched_count; 27 unsigned int irq_call_count; 28 #endif 29 unsigned int irq_tlb_count; 30 #ifdef CONFIG_X86_THERMAL_VECTOR 31 unsigned int irq_thermal_count; 32 #endif 33 #ifdef CONFIG_X86_MCE_THRESHOLD 34 unsigned int irq_threshold_count; 35 #endif 36 #ifdef CONFIG_X86_MCE_AMD 37 unsigned int irq_deferred_error_count; 38 #endif 39 #ifdef CONFIG_X86_HV_CALLBACK_VECTOR 40 unsigned int irq_hv_callback_count; 41 #endif 42 #if IS_ENABLED(CONFIG_HYPERV) 43 unsigned int irq_hv_reenlightenment_count; 44 unsigned int hyperv_stimer0_count; 45 #endif 46 #ifdef CONFIG_X86_POSTED_MSI 47 unsigned int posted_msi_notification_count; 48 #endif 49 } ____cacheline_aligned irq_cpustat_t; 50 51 DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat); 52 53 #ifdef CONFIG_X86_POSTED_MSI 54 DECLARE_PER_CPU_ALIGNED(struct pi_desc, posted_msi_pi_desc); 55 #endif 56 #define __ARCH_IRQ_STAT 57 58 #define inc_irq_stat(member) this_cpu_inc(irq_stat.member) 59 60 extern void ack_bad_irq(unsigned int irq); 61 62 extern u64 arch_irq_stat_cpu(unsigned int cpu); 63 #define arch_irq_stat_cpu arch_irq_stat_cpu 64 65 extern u64 arch_irq_stat(void); 66 #define arch_irq_stat arch_irq_stat 67 68 DECLARE_PER_CPU_CACHE_HOT(u16, __softirq_pending); 69 #define local_softirq_pending_ref __softirq_pending 70 71 #if IS_ENABLED(CONFIG_KVM_INTEL) 72 /* 73 * This function is called from noinstr interrupt contexts 74 * and must be inlined to not get instrumentation. 75 */ kvm_set_cpu_l1tf_flush_l1d(void)76static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void) 77 { 78 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1); 79 } 80 kvm_clear_cpu_l1tf_flush_l1d(void)81static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void) 82 { 83 __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0); 84 } 85 kvm_get_cpu_l1tf_flush_l1d(void)86static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void) 87 { 88 return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d); 89 } 90 #else /* !IS_ENABLED(CONFIG_KVM_INTEL) */ kvm_set_cpu_l1tf_flush_l1d(void)91static __always_inline void kvm_set_cpu_l1tf_flush_l1d(void) { } 92 #endif /* IS_ENABLED(CONFIG_KVM_INTEL) */ 93 94 #endif /* _ASM_X86_HARDIRQ_H */ 95