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2024-11-01 2f529f9b558ca1c1bd74be7437a84e4711743404

 kernel/include/linux/irqdesc.h
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@@ -68,7 +68,7 @@
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 	unsigned int		irqs_unhandled;
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 	atomic_t		threads_handled;
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 	int			threads_handled_last;
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-	raw_spinlock_t		lock;
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+	hybrid_spinlock_t	lock;
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 	struct cpumask		*percpu_enabled;
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 	const struct cpumask	*percpu_affinity;
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 #ifdef CONFIG_SMP
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@@ -154,6 +154,8 @@
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 int generic_handle_irq(unsigned int irq);
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+void generic_pipeline_irq(unsigned int irq, struct pt_regs *regs);
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+
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 #ifdef CONFIG_HANDLE_DOMAIN_IRQ
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 /*
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  * Convert a HW interrupt number to a logical one using a IRQ domain,
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@@ -164,11 +166,26 @@
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 int __handle_domain_irq(struct irq_domain *domain, unsigned int hwirq,
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 			bool lookup, struct pt_regs *regs);
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+#ifdef CONFIG_IRQ_PIPELINE
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+unsigned int irq_find_mapping(struct irq_domain *host,
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+			irq_hw_number_t hwirq);
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+
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+static inline int handle_domain_irq(struct irq_domain *domain,
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+				    unsigned int hwirq, struct pt_regs *regs)
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+{
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+	unsigned int irq = irq_find_mapping(domain, hwirq);
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+
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+	generic_pipeline_irq(irq, regs);
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+
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+	return 0;
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+}
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+#else
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 static inline int handle_domain_irq(struct irq_domain *domain,
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 				    unsigned int hwirq, struct pt_regs *regs)
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 {
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 	return __handle_domain_irq(domain, hwirq, true, regs);
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 }
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+#endif	/* !CONFIG_IRQ_PIPELINE */
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 #ifdef CONFIG_IRQ_DOMAIN
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 int handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq,
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@@ -252,6 +269,14 @@
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 	return desc->status_use_accessors & IRQ_PER_CPU_DEVID;
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 }
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+static inline int irq_is_oob(unsigned int irq)
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+{
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+	struct irq_desc *desc;
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+
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+	desc = irq_to_desc(irq);
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+	return desc->status_use_accessors & IRQ_OOB;
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+}
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+
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 static inline void
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 irq_set_lockdep_class(unsigned int irq, struct lock_class_key *lock_class,
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 		      struct lock_class_key *request_class)