Linux-EDAC Archive on lore.kernel.org
 help / color / Atom feed
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Yazen Ghannam <yazen.ghannam@amd.com>,
	Borislav Petkov <bp@suse.de>,
	"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
	James Morse <james.morse@arm.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Robert Richter <rrichter@marvell.com>,
	Tony Luck <tony.luck@intel.com>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 187/434] EDAC/amd64: Set grain per DIMM
Date: Sun, 29 Dec 2019 18:24:00 +0100
Message-ID: <20191229172714.243284613@linuxfoundation.org> (raw)
In-Reply-To: <20191229172702.393141737@linuxfoundation.org>

From: Yazen Ghannam <yazen.ghannam@amd.com>

[ Upstream commit 466503d6b1b33be46ab87c6090f0ade6c6011cbc ]

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 <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Robert Richter <rrichter@marvell.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191022203448.13962-7-Yazen.Ghannam@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 c1d4536ae466..cc5e56d752c8 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2936,6 +2936,7 @@ 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;
 		}
 	}
 
@@ -3012,6 +3013,7 @@ 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;
 		}
 	}
 
-- 
2.20.1




  parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191229172702.393141737@linuxfoundation.org>
2019-12-29 17:23 ` [PATCH 5.4 157/434] x86/mce: Lower throttling MCE messages priority to warning Greg Kroah-Hartman
2019-12-29 17:24 ` Greg Kroah-Hartman [this message]
2019-12-29 17:25 ` [PATCH 5.4 284/434] EDAC/ghes: Fix grain calculation Greg Kroah-Hartman
2019-12-29 17:27 ` [PATCH 5.4 421/434] x86/MCE/AMD: Do not use rdmsr_safe_on_cpu() in smca_configure() Greg Kroah-Hartman
2019-12-29 17:27 ` [PATCH 5.4 422/434] x86/MCE/AMD: Allow Reserved types to be overwritten in smca_banks[] Greg Kroah-Hartman
2019-12-29 17:27 ` [PATCH 5.4 423/434] x86/mce: Fix possibly incorrect severity calculation on AMD Greg Kroah-Hartman

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191229172714.243284613@linuxfoundation.org \
    --to=gregkh@linuxfoundation.org \
    --cc=bp@suse.de \
    --cc=james.morse@arm.com \
    --cc=linux-edac@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mchehab@kernel.org \
    --cc=rrichter@marvell.com \
    --cc=sashal@kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=tony.luck@intel.com \
    --cc=yazen.ghannam@amd.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-EDAC Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-edac/0 linux-edac/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-edac linux-edac/ https://lore.kernel.org/linux-edac \
		linux-edac@vger.kernel.org
	public-inbox-index linux-edac

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-edac


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git