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x86: move and enhance debug printk for nr_cpu_ids etc.
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Impact: cleanup, better debugging

This has proven useful in debugging, *before* we try to use
for_each_possible_cpu().  It also now shows nr_cpumask_bits.

Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Mike Travis committed Dec 17, 2008
1 parent e798673 commit a168196
Showing 1 changed file with 11 additions and 6 deletions.
17 changes: 11 additions & 6 deletions arch/x86/kernel/setup_percpu.c
Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,11 @@ void __init setup_per_cpu_areas(void)
old_size = PERCPU_ENOUGH_ROOM;
align = max_t(unsigned long, PAGE_SIZE, align);
size = roundup(old_size, align);

printk(KERN_INFO
"NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%d nr_node_ids:%d\n",
NR_CPUS, nr_cpumask_bits, nr_cpu_ids, nr_node_ids);

printk(KERN_INFO "PERCPU: Allocating %zd bytes of per cpu data\n",
size);

Expand All @@ -168,24 +173,24 @@ void __init setup_per_cpu_areas(void)
"cpu %d has no node %d or node-local memory\n",
cpu, node);
if (ptr)
printk(KERN_DEBUG "per cpu data for cpu%d at %016lx\n",
printk(KERN_DEBUG
"per cpu data for cpu%d at %016lx\n",
cpu, __pa(ptr));
}
else {
ptr = __alloc_bootmem_node(NODE_DATA(node), size, align,
__pa(MAX_DMA_ADDRESS));
if (ptr)
printk(KERN_DEBUG "per cpu data for cpu%d on node%d at %016lx\n",
cpu, node, __pa(ptr));
printk(KERN_DEBUG
"per cpu data for cpu%d on node%d "
"at %016lx\n",
cpu, node, __pa(ptr));
}
#endif
per_cpu_offset(cpu) = ptr - __per_cpu_start;
memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
}

printk(KERN_DEBUG "NR_CPUS: %d, nr_cpu_ids: %d, nr_node_ids %d\n",
NR_CPUS, nr_cpu_ids, nr_node_ids);

/* Setup percpu data maps */
setup_per_cpu_maps();

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