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[PATCH] ppc64: Add NUMA cpu summary at boot

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We used to print a NUMA cpu summary at boot before the hotplug cpu code
was added. This has been useful for catching machine configuration as
well as firmware bugs in the past.

This patch restores that functionality. An example of the output is:

Node 0 CPUs: 0-7
Node 1 CPUs: 8-15

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard
2005-12-13 06:56:47 +11:00
committed by Paul Mackerras
parent 2c066042ec
commit 4b703a2317
3 changed files with 43 additions and 3 deletions
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39
arch/powerpc/mm/numa.c
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@@ -489,7 +489,41 @@ static void __init setup_nonnuma(void)
node_set_online(0);
}
static void __init dump_numa_topology(void)
void __init dump_numa_cpu_topology(void)
{
unsigned int node;
unsigned int cpu, count;
if (min_common_depth == -1 || !numa_enabled)
return;
for_each_online_node(node) {
printk(KERN_INFO "Node %d CPUs:", node);
count = 0;
/*
* If we used a CPU iterator here we would miss printing
* the holes in the cpumap.
*/
for (cpu = 0; cpu < NR_CPUS; cpu++) {
if (cpu_isset(cpu, numa_cpumask_lookup_table[node])) {
if (count == 0)
printk(" %u", cpu);
++count;
} else {
if (count > 1)
printk("-%u", cpu - 1);
count = 0;
}
}
if (count > 1)
printk("-%u", NR_CPUS - 1);
printk("\n");
}
}
static void __init dump_numa_memory_topology(void)
{
unsigned int node;
unsigned int count;
@@ -521,7 +555,6 @@ static void __init dump_numa_topology(void)
printk("-0x%lx", i);
printk("\n");
}
return;
}
/*
@@ -583,7 +616,7 @@ void __init do_init_bootmem(void)
if (parse_numa_properties())
setup_nonnuma();
else
dump_numa_topology();
dump_numa_memory_topology();
register_cpu_notifier(&ppc64_numa_nb);