D28579.id83833.diff
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	Index: sys/arm64/arm64/mp_machdep.c
	===================================================================
	--- sys/arm64/arm64/mp_machdep.c
	+++ sys/arm64/arm64/mp_machdep.c
	@@ -434,11 +434,41 @@
	CTR0(KTR_SMP, "IPI_STOP (restart)");
	}

	+/*
	+ * Build up a topology describing the system's NUMA domains.
	+ */
	struct cpu_group *
	cpu_topo(void)
	{
	+ struct cpu_group dom, root;
	+ int i;
	+
	+ root = smp_topo_alloc(1);
	+ dom = smp_topo_alloc(vm_ndomains);
	+
	+ root->cg_parent = NULL;
	+ root->cg_child = dom;
	+ CPU_COPY(&all_cpus, &root->cg_mask);
	+ root->cg_count = mp_ncpus;
	+ root->cg_children = vm_ndomains;
	+ root->cg_level = CG_SHARE_NONE;
	+ root->cg_flags = 0;
	+
	+ /*
	+ * Redundant layers will be collapsed by the caller so we don't need a
	+ * special case for a single domain.
	+ */
	+ for (i = 0; i < vm_ndomains; i++, dom++) {
	+ dom->cg_parent = root;
	+ dom->cg_child = NULL;
	+ CPU_COPY(&cpuset_domain[i], &dom->cg_mask);
	+ dom->cg_count = CPU_COUNT(&dom->cg_mask);
	+ dom->cg_children = 0;
	+ dom->cg_level = CG_SHARE_L3;
	+ dom->cg_flags = 0;
	+ }

	- return (smp_topo_none());
	+ return (root);
	}

	/* Determine if we running MP machine */