Re: [PATCH v6 4/8] arm64: parse cpu capacity-dmips-mhz from DT

From: Juri Lelli
Date: Tue Aug 09 2016 - 05:43:06 EST


Hi,

this patch needs the fix below, since platforms can boot without a
cpu-map.

On 19/07/16 13:40, Juri Lelli wrote:
[...]
> @@ -185,6 +328,8 @@ static int __init parse_dt_topology(void)
> if (ret != 0)
> goto out_map;
>
> + normalize_cpu_capacity();
> +
> /*
> * Check that all cores are in the topology; the SMP code will
> * only mark cores described in the DT as possible.
> --

--->8---
arch/arm64/kernel/topology.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 56bbd6d41daf..288f511a5f29 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -394,8 +394,10 @@ static int __init parse_dt_topology(void)
* cluster with restricted subnodes.
*/
map = of_get_child_by_name(cn, "cpu-map");
- if (!map)
+ if (!map) {
+ cap_parsing_failed = true;
goto out;
+ }

ret = parse_cluster(map, 0);
if (ret != 0)
--
2.7.0