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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fd0f586972
As TLB shootdown requests to other CPU cores are now using function call
interrupts, TLB shootdowns entry in /proc/interrupts is always shown as 0.
This behavior change was introduced by commit 52aec3308d ("x86/tlb:
replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR").
This patch reverts TLB shootdowns entry in /proc/interrupts to count TLB
shootdowns separately from the other function call interrupts.
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama.qu@hitachi.com>
Link: http://lkml.kernel.org/r/20120926021128.22212.20440.stgit@hpxw
Acked-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#ifndef _ASM_X86_HARDIRQ_H
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#define _ASM_X86_HARDIRQ_H
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#include <linux/threads.h>
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#include <linux/irq.h>
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typedef struct {
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unsigned int __softirq_pending;
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unsigned int __nmi_count; /* arch dependent */
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#ifdef CONFIG_X86_LOCAL_APIC
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unsigned int apic_timer_irqs; /* arch dependent */
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unsigned int irq_spurious_count;
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unsigned int icr_read_retry_count;
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#endif
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unsigned int x86_platform_ipis; /* arch dependent */
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unsigned int apic_perf_irqs;
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unsigned int apic_irq_work_irqs;
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#ifdef CONFIG_SMP
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unsigned int irq_resched_count;
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unsigned int irq_call_count;
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/*
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* irq_tlb_count is double-counted in irq_call_count, so it must be
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* subtracted from irq_call_count when displaying irq_call_count
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*/
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unsigned int irq_tlb_count;
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#endif
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#ifdef CONFIG_X86_THERMAL_VECTOR
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unsigned int irq_thermal_count;
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#endif
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#ifdef CONFIG_X86_MCE_THRESHOLD
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unsigned int irq_threshold_count;
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#endif
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} ____cacheline_aligned irq_cpustat_t;
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DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
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/* We can have at most NR_VECTORS irqs routed to a cpu at a time */
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#define MAX_HARDIRQS_PER_CPU NR_VECTORS
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#define __ARCH_IRQ_STAT
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#define inc_irq_stat(member) this_cpu_inc(irq_stat.member)
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#define local_softirq_pending() this_cpu_read(irq_stat.__softirq_pending)
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#define __ARCH_SET_SOFTIRQ_PENDING
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#define set_softirq_pending(x) \
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this_cpu_write(irq_stat.__softirq_pending, (x))
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#define or_softirq_pending(x) this_cpu_or(irq_stat.__softirq_pending, (x))
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extern void ack_bad_irq(unsigned int irq);
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extern u64 arch_irq_stat_cpu(unsigned int cpu);
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#define arch_irq_stat_cpu arch_irq_stat_cpu
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extern u64 arch_irq_stat(void);
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#define arch_irq_stat arch_irq_stat
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#endif /* _ASM_X86_HARDIRQ_H */
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