From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71374C432C0 for ; Wed, 27 Nov 2019 01:13:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4CB632071E for ; Wed, 27 Nov 2019 01:13:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725823AbfK0BN6 (ORCPT ); Tue, 26 Nov 2019 20:13:58 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:43018 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725794AbfK0BN5 (ORCPT ); Tue, 26 Nov 2019 20:13:57 -0500 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xAR1CGq9022652; Tue, 26 Nov 2019 20:13:42 -0500 Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 2whcxqur6d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 26 Nov 2019 20:13:42 -0500 Received: from m0098413.ppops.net (m0098413.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id xAR1DgD8025434; Tue, 26 Nov 2019 20:13:42 -0500 Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0b-001b2d01.pphosted.com with ESMTP id 2whcxqur62-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 26 Nov 2019 20:13:42 -0500 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xAR1A3X9024502; Wed, 27 Nov 2019 01:13:41 GMT Received: from b01cxnp23032.gho.pok.ibm.com (b01cxnp23032.gho.pok.ibm.com [9.57.198.27]) by ppma01dal.us.ibm.com with ESMTP id 2wevd6rdp8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 27 Nov 2019 01:13:41 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xAR1De2Y47907078 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 Nov 2019 01:13:40 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 512CF112062; Wed, 27 Nov 2019 01:13:40 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 95F88112061; Wed, 27 Nov 2019 01:13:39 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 27 Nov 2019 01:13:39 +0000 (GMT) Subject: [PATCH 10/14] powerpc/vas: Print CRB and FIFO values From: Haren Myneni To: linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, mpe@ellerman.id.au, npiggin@gmail.com, mikey@neuling.org, herbert@gondor.apana.org.au Cc: sukadev@linux.vnet.ibm.com, hbabu@us.ibm.com Content-Type: text/plain; charset="UTF-8" Date: Tue, 26 Nov 2019 17:12:21 -0800 Message-ID: <1574817141.13250.18.camel@hbabu-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-11-26_08:2019-11-26,2019-11-26 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 bulkscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=847 suspectscore=0 lowpriorityscore=0 clxscore=1015 mlxscore=0 spamscore=0 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1911270008 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Dump FIFO values if could not find send window and print CRB for debugging. Signed-off-by: Sukadev Bhattiprolu Signed-off-by: Haren Myneni --- arch/powerpc/platforms/powernv/vas-fault.c | 40 ++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/arch/powerpc/platforms/powernv/vas-fault.c b/arch/powerpc/platforms/powernv/vas-fault.c index dd27649..ad594c8 100644 --- a/arch/powerpc/platforms/powernv/vas-fault.c +++ b/arch/powerpc/platforms/powernv/vas-fault.c @@ -36,6 +36,27 @@ void vas_wakeup_fault_handler(int virq, void *arg) wake_up(&vinst->fault_wq); } +static void dump_crb(struct coprocessor_request_block *crb) +{ + struct data_descriptor_entry *dde; + struct nx_fault_stamp *nx; + + dde = &crb->source; + pr_devel("SrcDDE: addr 0x%llx, len %d, count %d, idx %d, flags %d\n", + be64_to_cpu(dde->address), be32_to_cpu(dde->length), + dde->count, dde->index, dde->flags); + + dde = &crb->target; + pr_devel("TgtDDE: addr 0x%llx, len %d, count %d, idx %d, flags %d\n", + be64_to_cpu(dde->address), be32_to_cpu(dde->length), + dde->count, dde->index, dde->flags); + + nx = &crb->stamp.nx; + pr_devel("NX Stamp: PSWID 0x%x, FSA 0x%llx, flags 0x%x, FS 0x%x\n", + be32_to_cpu(nx->pswid), crb_nx_fault_addr(crb), + nx->flags, be32_to_cpu(nx->fault_status)); +} + static void notify_process(pid_t pid, u64 fault_addr) { int rc; @@ -154,6 +175,23 @@ static void update_csb(struct vas_window *window, } } +static void dump_fifo(struct vas_instance *vinst) +{ + int i; + unsigned long *fifo = vinst->fault_fifo; + + pr_err("Fault fifo size %d, max crbs %d, crb size %lu\n", + vinst->fault_fifo_size, + vinst->fault_fifo_size / CRB_SIZE, + sizeof(struct coprocessor_request_block)); + + pr_err("Fault FIFO Dump:\n"); + for (i = 0; i < 64; i += 4, fifo += 4) { + pr_err("[%.3d, %p]: 0x%.16lx 0x%.16lx 0x%.16lx 0x%.16lx\n", + i, fifo, *fifo, *(fifo+1), *(fifo+2), *(fifo+3)); + } +} + /* * Process CRBs that we receive on the fault window. */ @@ -211,6 +249,7 @@ static void process_fault_crbs(struct vas_instance *vinst) vinst->fault_crbs, atomic_read(&vinst->pending_fault)); + dump_crb(crb); window = vas_pswid_to_window(vinst, crb_nx_pswid(crb)); if (IS_ERR(window)) { @@ -220,6 +259,7 @@ static void process_fault_crbs(struct vas_instance *vinst) * even clean it up (return credit). * But we should not get here. */ + dump_fifo(vinst); pr_err("VAS[%d] fault_fifo %p, fifo %p, pswid 0x%x, fault_crbs %d, pending %d bad CRB?\n", vinst->vas_id, vinst->fault_fifo, fifo, crb_nx_pswid(crb), vinst->fault_crbs, -- 1.8.3.1