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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5fc509bc2b
Commitce0d3c0a6f("genirq: Revert sparse irq locking around __cpu_up() and move it to x86 for now") reverted irq locking introduced by commita899418167("hotplug: Prevent alloc/free of irq descriptors during cpu up/down") because of Xen allocating irqs in both of its cpu_up ops. We can move those allocations into CPU notifiers so that original patch can be reinstated. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
33 lines
780 B
C
33 lines
780 B
C
#ifndef _XEN_SMP_H
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#ifdef CONFIG_SMP
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extern void xen_send_IPI_mask(const struct cpumask *mask,
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int vector);
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extern void xen_send_IPI_mask_allbutself(const struct cpumask *mask,
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int vector);
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extern void xen_send_IPI_allbutself(int vector);
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extern void xen_send_IPI_all(int vector);
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extern void xen_send_IPI_self(int vector);
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extern int xen_smp_intr_init(unsigned int cpu);
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extern void xen_smp_intr_free(unsigned int cpu);
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#else /* CONFIG_SMP */
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static inline int xen_smp_intr_init(unsigned int cpu)
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{
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return 0;
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}
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static inline void xen_smp_intr_free(unsigned int cpu) {}
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#endif /* CONFIG_SMP */
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#ifdef CONFIG_XEN_PVH
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extern void xen_pvh_early_cpu_init(int cpu, bool entry);
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#else
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static inline void xen_pvh_early_cpu_init(int cpu, bool entry)
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{
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}
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#endif
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#endif
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