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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2016-01-05 22:35:35 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-14 16:58:59 -0500 |
| commit | 36beca6571c941b28b0798667608239731f9bc3a (patch) | |
| tree | d2a065d34dce3fb4865ef77a2b8fcd794da78a13 /arch/sparc/mm/init_64.c | |
| parent | 525fd5a94e1be0776fa652df5c687697db508c91 (diff) | |
| download | lwn-36beca6571c941b28b0798667608239731f9bc3a.tar.gz lwn-36beca6571c941b28b0798667608239731f9bc3a.zip | |
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/init_64.c')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 15 |
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(); |