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authorNitin Gupta <nitin.m.gupta@oracle.com>2016-01-05 22:35:35 -0800
committerDavid S. Miller <davem@davemloft.net>2016-01-14 16:58:59 -0500
commit36beca6571c941b28b0798667608239731f9bc3a (patch)
treed2a065d34dce3fb4865ef77a2b8fcd794da78a13 /arch/sparc/mm
parent525fd5a94e1be0776fa652df5c687697db508c91 (diff)
downloadlinux-36beca6571c941b28b0798667608239731f9bc3a.tar.gz
sparc64: Fix numa node distance initialization
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>
Diffstat (limited to 'arch/sparc/mm')
-rw-r--r--arch/sparc/mm/init_64.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 3025bd57f7ab..6f216853f272 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1267,13 +1267,6 @@ static int __init numa_parse_mdesc(void)
int i, j, err, count;
u64 node;
- /* 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;
- }
-
node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
if (node == MDESC_NODE_NULL) {
mdesc_release(md);
@@ -1369,10 +1362,18 @@ 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();