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authorAnton Blanchard <anton@samba.org>2005-12-13 06:56:47 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 14:53:37 +1100
commit4b703a231799f43f3414b62300b8ad6736a4aa9d (patch)
tree401d9edc69193858bd25f97477207f143dd5aa68 /arch/powerpc/mm
parent2c066042ecc3b0d811440002b74fa3778d4432cb (diff)
[PATCH] ppc64: Add NUMA cpu summary at boot
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>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/numa.c39
1 files changed, 36 insertions, 3 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 97e83f1d1bd..fc519cd90f7 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -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);