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sparc64: Fix numa node distance initialization 

[ Upstream commit 36beca6571 ]

Orabug: 22495713

Currently, NUMA node distance matrix is initialized only
when a machine descriptor (MD) exists. However, sun4u
machines (e.g. Sun Blade 2500) do not have an MD and thus
distance values were left uninitialized. The initialization
is now moved such that it happens on both sun4u and sun4v.

Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Tested-by: Mikael Pettersson <mikpelinux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
wifi-calibration
Nitin Gupta 2016-01-05 22:35:35 -08:00 committed by Sasha Levin
parent 693b8dc4b2
commit 25f7f80eab
1 changed files with 8 additions and 0 deletions
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8
arch/sparc/mm/init_64.c
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@ -1301,10 +1301,18 @@ static int __init numa_parse_sun4u(void)
static int __init bootmem_init_numa(void)
{
int i, j;
int err = -1;
numadbg("bootmem_init_numa()\n");
/* Some sane defaults for numa latency values */
for (i = 0; i < MAX_NUMNODES; i++) {
for (j = 0; j < MAX_NUMNODES; j++)
numa_latency[i][j] = (i == j) ?
LOCAL_DISTANCE : REMOTE_DISTANCE;
}
if (numa_enabled) {
if (tlb_type == hypervisor)
err = numa_parse_mdesc();