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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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93f3b2ee0a
Count CPU Restart events and make them visible via /proc/interrupts. Every CPU hotplug (online) event will increase the per cpu counter. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
#ifndef _ASM_IRQ_H
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#define _ASM_IRQ_H
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#include <linux/hardirq.h>
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#include <linux/percpu.h>
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#include <linux/cache.h>
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#include <linux/types.h>
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enum interruption_main_class {
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EXTERNAL_INTERRUPT,
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IO_INTERRUPT,
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NR_IRQS
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};
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enum interruption_class {
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IRQEXT_CLK,
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IRQEXT_EXC,
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IRQEXT_EMS,
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IRQEXT_TMR,
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IRQEXT_TLA,
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IRQEXT_PFL,
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IRQEXT_DSD,
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IRQEXT_VRT,
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IRQEXT_SCP,
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IRQEXT_IUC,
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IRQEXT_CMS,
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IRQEXT_CMC,
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IRQEXT_CMR,
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IRQIO_CIO,
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IRQIO_QAI,
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IRQIO_DAS,
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IRQIO_C15,
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IRQIO_C70,
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IRQIO_TAP,
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IRQIO_VMR,
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IRQIO_LCS,
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IRQIO_CLW,
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IRQIO_CTC,
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IRQIO_APB,
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IRQIO_ADM,
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IRQIO_CSC,
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IRQIO_PCI,
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IRQIO_MSI,
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NMI_NMI,
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CPU_RST,
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NR_ARCH_IRQS
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};
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struct irq_stat {
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unsigned int irqs[NR_ARCH_IRQS];
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};
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DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
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static __always_inline void inc_irq_stat(enum interruption_class irq)
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{
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__get_cpu_var(irq_stat).irqs[irq]++;
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}
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struct ext_code {
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unsigned short subcode;
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unsigned short code;
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};
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typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
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int register_external_interrupt(u16 code, ext_int_handler_t handler);
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int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
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void service_subclass_irq_register(void);
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void service_subclass_irq_unregister(void);
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void measurement_alert_subclass_register(void);
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void measurement_alert_subclass_unregister(void);
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#ifdef CONFIG_LOCKDEP
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# define disable_irq_nosync_lockdep(irq) disable_irq_nosync(irq)
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# define disable_irq_nosync_lockdep_irqsave(irq, flags) \
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disable_irq_nosync(irq)
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# define disable_irq_lockdep(irq) disable_irq(irq)
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# define enable_irq_lockdep(irq) enable_irq(irq)
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# define enable_irq_lockdep_irqrestore(irq, flags) \
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enable_irq(irq)
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#endif
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#endif /* _ASM_IRQ_H */
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