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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d6f83427ff
Both the 64bit and the 32bit handle_irq() implementation check the irq descriptor pointer with IS_ERR_OR_NULL() and return failure. That can be done simpler in the common do_IRQ() code. This reduces the 64bit handle_irq() function to a wrapper around generic_handle_irq_desc(). Invoke it directly from do_IRQ() to spare the extra function call. [ tglx: Got rid of the #ifdef and massaged changelog ] Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/2ec758c7-9aaa-73ab-f083-cc44c86aa741@gmail.com
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_IRQ_H
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#define _ASM_X86_IRQ_H
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/*
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* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
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*
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* IRQ/IPI changes taken from work by Thomas Radke
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* <tomsoft@informatik.tu-chemnitz.de>
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*/
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#include <asm/apicdef.h>
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#include <asm/irq_vectors.h>
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static inline int irq_canonicalize(int irq)
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{
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return ((irq == 2) ? 9 : irq);
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}
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extern int irq_init_percpu_irqstack(unsigned int cpu);
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#define __ARCH_HAS_DO_SOFTIRQ
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struct irq_desc;
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extern void fixup_irqs(void);
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#ifdef CONFIG_HAVE_KVM
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extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
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extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
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extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
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extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
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#endif
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extern void (*x86_platform_ipi_callback)(void);
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extern void native_init_IRQ(void);
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extern void handle_irq(struct irq_desc *desc, struct pt_regs *regs);
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extern __visible unsigned int do_IRQ(struct pt_regs *regs);
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extern void init_ISA_irqs(void);
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extern void __init init_IRQ(void);
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#ifdef CONFIG_X86_LOCAL_APIC
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void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
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bool exclude_self);
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extern __visible void smp_x86_platform_ipi(struct pt_regs *regs);
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#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
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#endif
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#endif /* _ASM_X86_IRQ_H */
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