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)
kvm_set_cpu_l1tf_flush_l1d(void)66 static inline void kvm_set_cpu_l1tf_flush_l1d(void)
67 {
68 	__this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
69 }
70 
kvm_clear_cpu_l1tf_flush_l1d(void)71 static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void)
72 {
73 	__this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
74 }
75 
kvm_get_cpu_l1tf_flush_l1d(void)76 static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void)
77 {
78 	return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
79 }
80 #else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
kvm_set_cpu_l1tf_flush_l1d(void)81 static inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
82 #endif /* IS_ENABLED(CONFIG_KVM_INTEL) */
83 
84 #endif /* _ASM_X86_HARDIRQ_H */
85