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Thu, 23 Jan 2020 09:02:52 +0000 Received: from MN2PR18MB3408.namprd18.prod.outlook.com ([fe80::b96d:5663:6402:82ea]) by MN2PR18MB3408.namprd18.prod.outlook.com ([fe80::b96d:5663:6402:82ea%7]) with mapi id 15.20.2644.028; Thu, 23 Jan 2020 09:02:52 +0000 Received: from rric.localdomain (31.208.96.227) by HE1PR0902CA0010.eurprd09.prod.outlook.com (2603:10a6:3:e5::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2644.20 via Frontend Transport; Thu, 23 Jan 2020 09:02:50 +0000 From: Robert Richter To: Borislav Petkov , Mauro Carvalho Chehab , Tony Luck CC: James Morse , Aristeu Rozanski , Robert Richter , "linux-edac@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Mauro Carvalho Chehab Subject: [PATCH v3 02/10] EDAC/mc: Reorder functions edac_mc_alloc*() Thread-Topic: [PATCH v3 02/10] EDAC/mc: Reorder functions edac_mc_alloc*() Thread-Index: AQHV0cvk9qjXYuG9WEiAcE89VHJTnQ== Date: Thu, 23 Jan 2020 09:02:52 +0000 Message-ID: <20200123090210.26933-3-rrichter@marvell.com> References: <20200123090210.26933-1-rrichter@marvell.com> In-Reply-To: <20200123090210.26933-1-rrichter@marvell.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HE1PR0902CA0010.eurprd09.prod.outlook.com (2603:10a6:3:e5::20) To MN2PR18MB3408.namprd18.prod.outlook.com (2603:10b6:208:165::10) x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.20.1 x-originating-ip: [31.208.96.227] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6edd91f5-0b80-4c1d-9aa0-08d79fe306ee x-ms-traffictypediagnostic: MN2PR18MB3247: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1303; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 6edd91f5-0b80-4c1d-9aa0-08d79fe306ee X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Jan 2020 09:02:52.0796 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: kTS+zsZsIQ5vKUpr7GUVd5VNX9TpzMZ4HBcIewZb8JDdPfiEzg/wnaM8bTsLFSz2NMH1rkUDjeOc3VNum2rxYg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR18MB3247 X-OriginatorOrg: marvell.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-22_08:2020-01-22,2020-01-22 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reorder the new created functions edac_mc_alloc_csrows() and edac_mc_alloc_dimms() and move them before edac_mc_alloc(). No further code changes. Signed-off-by: Robert Richter Reviewed-by: Mauro Carvalho Chehab Acked-by: Aristeu Rozanski --- drivers/edac/edac_mc.c | 209 ++++++++++++++++++++--------------------- 1 file changed, 103 insertions(+), 106 deletions(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index d71006a4f07b..1e227e69e216 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -311,112 +311,6 @@ static void mci_release(struct device *dev) kfree(mci); } =20 -static int edac_mc_alloc_csrows(struct mem_ctl_info *mci); -static int edac_mc_alloc_dimms(struct mem_ctl_info *mci); - -struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num, - unsigned int n_layers, - struct edac_mc_layer *layers, - unsigned int sz_pvt) -{ - struct mem_ctl_info *mci; - struct edac_mc_layer *layer; - u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS]; - unsigned int idx, size, tot_dimms =3D 1, count =3D 1; - unsigned int tot_csrows =3D 1, tot_channels =3D 1, tot_errcount =3D 0; - void *pvt, *ptr =3D NULL; - int i; - bool per_rank =3D false; - - if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers =3D=3D 0)) - return NULL; - - /* - * Calculate the total amount of dimms and csrows/cschannels while - * in the old API emulation mode - */ - for (idx =3D 0; idx < n_layers; idx++) { - tot_dimms *=3D layers[idx].size; - - if (layers[idx].is_virt_csrow) - tot_csrows *=3D layers[idx].size; - else - tot_channels *=3D layers[idx].size; - - if (layers[idx].type =3D=3D EDAC_MC_LAYER_CHIP_SELECT) - per_rank =3D true; - } - - /* Figure out the offsets of the various items from the start of an mc - * structure. We want the alignment of each item to be at least as - * stringent as what the compiler would provide if we could simply - * hardcode everything into a single struct. - */ - mci =3D edac_align_ptr(&ptr, sizeof(*mci), 1); - layer =3D edac_align_ptr(&ptr, sizeof(*layer), n_layers); - for (i =3D 0; i < n_layers; i++) { - count *=3D layers[i].size; - edac_dbg(4, "errcount layer %d size %d\n", i, count); - ce_per_layer[i] =3D edac_align_ptr(&ptr, sizeof(u32), count); - ue_per_layer[i] =3D edac_align_ptr(&ptr, sizeof(u32), count); - tot_errcount +=3D 2 * count; - } - - edac_dbg(4, "allocating %d error counters\n", tot_errcount); - pvt =3D edac_align_ptr(&ptr, sz_pvt, 1); - size =3D ((unsigned long)pvt) + sz_pvt; - - edac_dbg(1, "allocating %u bytes for mci data (%d %s, %d csrows/channels)= \n", - size, - tot_dimms, - per_rank ? "ranks" : "dimms", - tot_csrows * tot_channels); - - mci =3D kzalloc(size, GFP_KERNEL); - if (mci =3D=3D NULL) - return NULL; - - mci->dev.release =3D mci_release; - device_initialize(&mci->dev); - - /* Adjust pointers so they point within the memory we just allocated - * rather than an imaginary chunk of memory located at address 0. - */ - layer =3D (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer)= ); - for (i =3D 0; i < n_layers; i++) { - mci->ce_per_layer[i] =3D (u32 *)((char *)mci + ((unsigned long)ce_per_la= yer[i])); - mci->ue_per_layer[i] =3D (u32 *)((char *)mci + ((unsigned long)ue_per_la= yer[i])); - } - pvt =3D sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL; - - /* setup index and various internal pointers */ - mci->mc_idx =3D mc_num; - mci->tot_dimms =3D tot_dimms; - mci->pvt_info =3D pvt; - mci->n_layers =3D n_layers; - mci->layers =3D layer; - memcpy(mci->layers, layers, sizeof(*layer) * n_layers); - mci->nr_csrows =3D tot_csrows; - mci->num_cschannel =3D tot_channels; - mci->csbased =3D per_rank; - - if (edac_mc_alloc_csrows(mci)) - goto error; - - if (edac_mc_alloc_dimms(mci)) - goto error; - - mci->op_state =3D OP_ALLOC; - - return mci; - -error: - _edac_mc_free(mci); - - return NULL; -} -EXPORT_SYMBOL_GPL(edac_mc_alloc); - static int edac_mc_alloc_csrows(struct mem_ctl_info *mci) { unsigned int tot_csrows =3D mci->nr_csrows; @@ -545,6 +439,109 @@ static int edac_mc_alloc_dimms(struct mem_ctl_info *m= ci) return 0; } =20 +struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num, + unsigned int n_layers, + struct edac_mc_layer *layers, + unsigned int sz_pvt) +{ + struct mem_ctl_info *mci; + struct edac_mc_layer *layer; + u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS]; + unsigned int idx, size, tot_dimms =3D 1, count =3D 1; + unsigned int tot_csrows =3D 1, tot_channels =3D 1, tot_errcount =3D 0; + void *pvt, *ptr =3D NULL; + int i; + bool per_rank =3D false; + + if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers =3D=3D 0)) + return NULL; + + /* + * Calculate the total amount of dimms and csrows/cschannels while + * in the old API emulation mode + */ + for (idx =3D 0; idx < n_layers; idx++) { + tot_dimms *=3D layers[idx].size; + + if (layers[idx].is_virt_csrow) + tot_csrows *=3D layers[idx].size; + else + tot_channels *=3D layers[idx].size; + + if (layers[idx].type =3D=3D EDAC_MC_LAYER_CHIP_SELECT) + per_rank =3D true; + } + + /* Figure out the offsets of the various items from the start of an mc + * structure. We want the alignment of each item to be at least as + * stringent as what the compiler would provide if we could simply + * hardcode everything into a single struct. + */ + mci =3D edac_align_ptr(&ptr, sizeof(*mci), 1); + layer =3D edac_align_ptr(&ptr, sizeof(*layer), n_layers); + for (i =3D 0; i < n_layers; i++) { + count *=3D layers[i].size; + edac_dbg(4, "errcount layer %d size %d\n", i, count); + ce_per_layer[i] =3D edac_align_ptr(&ptr, sizeof(u32), count); + ue_per_layer[i] =3D edac_align_ptr(&ptr, sizeof(u32), count); + tot_errcount +=3D 2 * count; + } + + edac_dbg(4, "allocating %d error counters\n", tot_errcount); + pvt =3D edac_align_ptr(&ptr, sz_pvt, 1); + size =3D ((unsigned long)pvt) + sz_pvt; + + edac_dbg(1, "allocating %u bytes for mci data (%d %s, %d csrows/channels)= \n", + size, + tot_dimms, + per_rank ? "ranks" : "dimms", + tot_csrows * tot_channels); + + mci =3D kzalloc(size, GFP_KERNEL); + if (mci =3D=3D NULL) + return NULL; + + mci->dev.release =3D mci_release; + device_initialize(&mci->dev); + + /* Adjust pointers so they point within the memory we just allocated + * rather than an imaginary chunk of memory located at address 0. + */ + layer =3D (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer)= ); + for (i =3D 0; i < n_layers; i++) { + mci->ce_per_layer[i] =3D (u32 *)((char *)mci + ((unsigned long)ce_per_la= yer[i])); + mci->ue_per_layer[i] =3D (u32 *)((char *)mci + ((unsigned long)ue_per_la= yer[i])); + } + pvt =3D sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL; + + /* setup index and various internal pointers */ + mci->mc_idx =3D mc_num; + mci->tot_dimms =3D tot_dimms; + mci->pvt_info =3D pvt; + mci->n_layers =3D n_layers; + mci->layers =3D layer; + memcpy(mci->layers, layers, sizeof(*layer) * n_layers); + mci->nr_csrows =3D tot_csrows; + mci->num_cschannel =3D tot_channels; + mci->csbased =3D per_rank; + + if (edac_mc_alloc_csrows(mci)) + goto error; + + if (edac_mc_alloc_dimms(mci)) + goto error; + + mci->op_state =3D OP_ALLOC; + + return mci; + +error: + _edac_mc_free(mci); + + return NULL; +} +EXPORT_SYMBOL_GPL(edac_mc_alloc); + void edac_mc_free(struct mem_ctl_info *mci) { edac_dbg(1, "\n"); --=20 2.20.1