2019-07-16 07:37:39

by Vladimir Kondratiev

Subject: [PATCH] mips: fix cacheinfo

Because CONFIG_OF defined for MIPS, cacheinfo attempts to fill information
from DT, ignoring data filled by architecture routine. This leads to error
reported

cacheinfo: Unable to detect cache hierarchy for CPU 0

Way to fix this provided in
commit fac51482577d ("drivers: base: cacheinfo: fix x86 with
CONFIG_OF enabled")

Utilize same mechanism to report that cacheinfo set by architecture
specific function

Signed-off-by: Vladimir Kondratiev <[email protected]>
---
arch/mips/kernel/cacheinfo.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/mips/kernel/cacheinfo.c b/arch/mips/kernel/cacheinfo.c
index e0dd66881da6..f777e44653d5 100644
--- a/arch/mips/kernel/cacheinfo.c
+++ b/arch/mips/kernel/cacheinfo.c
@@ -69,6 +69,8 @@ static int __populate_cache_leaves(unsigned int cpu)
if (c->tcache.waysize)
populate_cache(tcache, this_leaf, 3, CACHE_TYPE_UNIFIED);

+ this_cpu_ci->cpu_map_populated = true;
+
return 0;
}

--
2.20.1

2019-07-17 16:00:05

by Paul Burton

Subject: Re: [PATCH] mips: fix cacheinfo

Hello,

Vladimir Kondratiev wrote:
> Because CONFIG_OF defined for MIPS, cacheinfo attempts to fill information
> from DT, ignoring data filled by architecture routine. This leads to error
> reported
>
> cacheinfo: Unable to detect cache hierarchy for CPU 0
>
> Way to fix this provided in
> commit fac51482577d ("drivers: base: cacheinfo: fix x86 with
> CONFIG_OF enabled")
>
> Utilize same mechanism to report that cacheinfo set by architecture
> specific function
>
> Signed-off-by: Vladimir Kondratiev <[email protected]>

Applied to mips-fixes.

Thanks,
Paul

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