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Fri, 18 Oct 2019 15:31:30 +0000 From: "Ghannam, Yazen" To: "linux-edac@vger.kernel.org" CC: "Ghannam, Yazen" , "linux-kernel@vger.kernel.org" , "bp@alien8.de" Subject: [PATCH 6/6] EDAC/amd64: Set grain per DIMM Thread-Topic: [PATCH 6/6] EDAC/amd64: Set grain per DIMM Thread-Index: AQHVhckcH8Q3hhJGUEaVQKby7sMplg== Date: Fri, 18 Oct 2019 15:31:28 +0000 Message-ID: <20191018153114.39378-7-Yazen.Ghannam@amd.com> References: <20191018153114.39378-1-Yazen.Ghannam@amd.com> In-Reply-To: <20191018153114.39378-1-Yazen.Ghannam@amd.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SN1PR12CA0046.namprd12.prod.outlook.com (2603:10b6:802:20::17) To SN6PR12MB2639.namprd12.prod.outlook.com (2603:10b6:805:6f::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Yazen.Ghannam@amd.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.17.1 x-originating-ip: [165.204.78.2] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b9b58ad7-6155-480d-6e1e-08d753e03e7c x-ms-office365-filtering-ht: Tenant x-ms-traffictypediagnostic: SN6PR12MB2608: x-ms-exchange-purlcount: 1 x-ld-processed: 3dd8961f-e488-4e60-8e11-a82d994e183d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:240; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: b9b58ad7-6155-480d-6e1e-08d753e03e7c X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Oct 2019 15:31:28.4934 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: /FXKKJFTk2UkTChpyscJLRr9sb9o43WNdp4OclOTrC0FgPokLo+WMtIn81Ma9V8fsKE3DCSQk+Gh3pzz8BjQ7w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR12MB2608 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yazen Ghannam 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 --- Link: https://lkml.kernel.org/r/724d6f97-61f2-94bd-3f4b-793a55b6ac15@amd.com 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 2a0a8be8f767..b5c0accfefcf 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 =3D pvt->dram_type; dimm->edac_mode =3D edac_mode; dimm->dtype =3D dev_type; + dimm->grain =3D 64; } } =20 @@ -3020,6 +3021,7 @@ static int init_csrows(struct mem_ctl_info *mci) dimm =3D csrow->channels[j]->dimm; dimm->mtype =3D pvt->dram_type; dimm->edac_mode =3D edac_mode; + dimm->grain =3D 64; } } =20 --=20 2.17.1