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x86/vector: Store the single CPU targets in apic data
Now that the interrupt affinities are targeted at single CPUs storing them in a cpumask is overkill. Store them in a dedicated variable. This does not yet remove the domain cpumasks because the current allocator relies on them. Preparatory change for the allocator rework. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Juergen Gross <jgross@suse.com> Tested-by: Yu Chen <yu.c.chen@intel.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rui Zhang <rui.zhang@intel.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Len Brown <lenb@kernel.org> Link: https://lkml.kernel.org/r/20170913213154.544867277@linutronix.de
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@ -23,6 +23,8 @@
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struct apic_chip_data {
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struct irq_cfg cfg;
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unsigned int cpu;
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unsigned int prev_cpu;
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cpumask_var_t domain;
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cpumask_var_t old_domain;
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u8 move_in_progress : 1;
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@ -214,6 +216,7 @@ update:
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cpumask_and(d->old_domain, d->old_domain, cpu_online_mask);
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d->move_in_progress = !cpumask_empty(d->old_domain);
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d->cfg.old_vector = d->move_in_progress ? d->cfg.vector : 0;
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d->prev_cpu = d->cpu;
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d->cfg.vector = vector;
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cpumask_copy(d->domain, vector_cpumask);
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success:
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@ -228,6 +231,7 @@ success:
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cpumask_and(vector_searchmask, vector_searchmask, mask);
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BUG_ON(apic->cpu_mask_to_apicid(vector_searchmask, irqd,
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&d->cfg.dest_apicid));
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d->cpu = cpumask_first(vector_searchmask);
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return 0;
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}
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@ -428,6 +432,7 @@ static void __init init_legacy_irqs(void)
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apicd->cfg.vector = ISA_IRQ_VECTOR(i);
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cpumask_copy(apicd->domain, cpumask_of(0));
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apicd->cpu = 0;
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irq_set_chip_data(i, apicd);
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}
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}
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