From: Yazen Ghannam <[email protected]>
The following commit introduced a warning on error reports without a
non-zero grain value.
3724ace582d9 ("EDAC/mc: Fix grain_bits calculation")
The amd64_edac_mod module does not provide a value, so the warning will
be given on the first reported memory error.
Set the grain per DIMM to cacheline size (64 bytes). This is the current
recommendation.
Fixes: 3724ace582d9 ("EDAC/mc: Fix grain_bits calculation")
Signed-off-by: Yazen Ghannam <[email protected]>
---
Link:
https://lkml.kernel.org/r/[email protected]
v1 -> v2:
* No change.
rfc -> v1:
* New patch.
drivers/edac/amd64_edac.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 114e7395daab..4ab7bcdede51 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2944,6 +2944,7 @@ static int init_csrows_df(struct mem_ctl_info *mci)
dimm->mtype = pvt->dram_type;
dimm->edac_mode = edac_mode;
dimm->dtype = dev_type;
+ dimm->grain = 64;
}
}
@@ -3020,6 +3021,7 @@ static int init_csrows(struct mem_ctl_info *mci)
dimm = csrow->channels[j]->dimm;
dimm->mtype = pvt->dram_type;
dimm->edac_mode = edac_mode;
+ dimm->grain = 64;
}
}
--
2.17.1
