From patchwork Tue Jul 16 11:33:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hari Bathini X-Patchwork-Id: 1132655 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45nzPT4mhpz9s7T for ; Tue, 16 Jul 2019 21:55:57 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45nzPT3B5gzDqYW for ; Tue, 16 Jul 2019 21:55:57 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45nyvg0ZnqzDqTn for ; Tue, 16 Jul 2019 21:33:35 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by bilbo.ozlabs.org (Postfix) with ESMTP id 45nyvf69tfz8t9P for ; Tue, 16 Jul 2019 21:33:34 +1000 (AEST) Received: by ozlabs.org (Postfix) id 45nyvf5xBhz9sN4; Tue, 16 Jul 2019 21:33:34 +1000 (AEST) Delivered-To: linuxppc-dev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=hbathini@linux.ibm.com; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45nyvf2gZWz9s8m for ; Tue, 16 Jul 2019 21:33:34 +1000 (AEST) Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x6GBMbvO080431 for ; Tue, 16 Jul 2019 07:33:32 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2tsbp5dffa-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 16 Jul 2019 07:33:32 -0400 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 16 Jul 2019 12:33:26 +0100 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x6GBXP4w47710416 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Jul 2019 11:33:25 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 64EF911C04A; Tue, 16 Jul 2019 11:33:25 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D2D4711C05B; Tue, 16 Jul 2019 11:33:23 +0000 (GMT) Received: from hbathini.in.ibm.com (unknown [9.184.183.117]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 16 Jul 2019 11:33:23 +0000 (GMT) Subject: [PATCH v4 12/25] powernv/fadump: define register/un-register callback functions From: Hari Bathini To: linuxppc-dev Date: Tue, 16 Jul 2019 17:03:23 +0530 In-Reply-To: <156327668777.27462.5297279227799429100.stgit@hbathini.in.ibm.com> References: <156327668777.27462.5297279227799429100.stgit@hbathini.in.ibm.com> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19071611-0008-0000-0000-000002FDA6BA X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19071611-0009-0000-0000-0000226B1C53 Message-Id: <156327680307.27462.16414477591782848444.stgit@hbathini.in.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-07-16_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907160145 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ananth N Mavinakayanahalli , Mahesh J Salgaonkar , Vasant Hegde , Oliver , Nicholas Piggin , Stewart Smith , Daniel Axtens Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Make OPAL calls to register and un-register with firmware for MPIPL. Signed-off-by: Hari Bathini --- arch/powerpc/platforms/powernv/opal-fadump.c | 71 +++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c index 4b8504e..2179126 100644 --- a/arch/powerpc/platforms/powernv/opal-fadump.c +++ b/arch/powerpc/platforms/powernv/opal-fadump.c @@ -27,6 +27,20 @@ static struct opal_fadump_mem_struct *opal_fdm; +static void opal_fadump_update_config(struct fw_dump *fadump_conf, + const struct opal_fadump_mem_struct *fdm) +{ + /* + * The destination address of the first boot memory region is the + * destination address of boot memory regions. + */ + fadump_conf->boot_mem_dest_addr = fdm->rgn[0].dest; + pr_debug("Destination address of boot memory regions: %#016lx\n", + fadump_conf->boot_mem_dest_addr); + + fadump_conf->fadumphdr_addr = fdm->fadumphdr_addr; +} + static ulong opal_fadump_init_mem_struct(struct fw_dump *fadump_conf) { ulong addr = fadump_conf->reserve_dump_area_start; @@ -47,6 +61,8 @@ static ulong opal_fadump_init_mem_struct(struct fw_dump *fadump_conf) opal_fdm->fadumphdr_addr = (opal_fdm->rgn[0].dest + fadump_conf->boot_memory_size); + opal_fadump_update_config(fadump_conf, opal_fdm); + return addr; } @@ -88,12 +104,63 @@ static int opal_fadump_setup_kernel_metadata(struct fw_dump *fadump_conf) static int opal_fadump_register_fadump(struct fw_dump *fadump_conf) { - return -EIO; + int i, err = -EIO; + s64 rc; + + for (i = 0; i < opal_fdm->region_cnt; i++) { + rc = opal_mpipl_update(OPAL_MPIPL_ADD_RANGE, + opal_fdm->rgn[i].src, + opal_fdm->rgn[i].dest, + opal_fdm->rgn[i].size); + if (rc != OPAL_SUCCESS) + break; + + opal_fdm->registered_regions++; + } + + switch (rc) { + case OPAL_SUCCESS: + pr_info("Registration is successful!\n"); + fadump_conf->dump_registered = 1; + err = 0; + break; + case OPAL_UNSUPPORTED: + pr_err("Support not available.\n"); + fadump_conf->fadump_supported = 0; + fadump_conf->fadump_enabled = 0; + break; + case OPAL_INTERNAL_ERROR: + pr_err("Failed to register. Hardware Error(%lld).\n", rc); + break; + case OPAL_PARAMETER: + pr_err("Failed to register. Parameter Error(%lld).\n", rc); + break; + case OPAL_PERMISSION: + pr_err("Already registered!\n"); + fadump_conf->dump_registered = 1; + err = -EEXIST; + break; + default: + pr_err("Failed to register. Unknown Error(%lld).\n", rc); + break; + } + + return err; } static int opal_fadump_unregister_fadump(struct fw_dump *fadump_conf) { - return -EIO; + s64 rc; + + rc = opal_mpipl_update(OPAL_MPIPL_REMOVE_ALL, 0, 0, 0); + if (rc) { + pr_err("Failed to un-register - unexpected Error(%lld).\n", rc); + return -EIO; + } + + opal_fdm->registered_regions = 0; + fadump_conf->dump_registered = 0; + return 0; } static int opal_fadump_invalidate_fadump(struct fw_dump *fadump_conf)