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Linux kernel mirror (for testing)
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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
7typedef 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
51DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
52
53#ifdef CONFIG_X86_POSTED_MSI
54DECLARE_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
60extern void ack_bad_irq(unsigned int irq);
61
62extern u64 arch_irq_stat_cpu(unsigned int cpu);
63#define arch_irq_stat_cpu arch_irq_stat_cpu
64
65extern u64 arch_irq_stat(void);
66#define arch_irq_stat arch_irq_stat
67
68DECLARE_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 */
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
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
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) */
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 */