kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/include/linux/irq_cpustat.h
..
..
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+/* SPDX-License-Identifier: GPL-2.0 */
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+#ifndef __irq_cpustat_h
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+#define __irq_cpustat_h
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+
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+/*
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+ * Contains default mappings for irq_cpustat_t, used by almost every
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+ * architecture.  Some arch (like s390) have per cpu hardware pages and
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+ * they define their own mappings for irq_stat.
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+ *
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+ * Keith Owens <kaos@ocs.com.au> July 2000.
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+ */
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+
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+
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+/*
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+ * Simple wrappers reducing source bloat.  Define all irq_stat fields
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+ * here, even ones that are arch dependent.  That way we get common
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+ * definitions instead of differing sets for each arch.
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+ */
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+
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+#ifndef __ARCH_IRQ_STAT
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+DECLARE_PER_CPU_ALIGNED(irq_cpustat_t, irq_stat);	/* defined in asm/hardirq.h */
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+#define __IRQ_STAT(cpu, member)	(per_cpu(irq_stat.member, cpu))
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+#endif
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+
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+/* arch dependent irq_stat fields */
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+#define nmi_count(cpu)		__IRQ_STAT((cpu), __nmi_count)	/* i386 */
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+
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+#endif	/* __irq_cpustat_h */