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=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 autolearn=unavailable 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 C932FC43331 for ; Thu, 2 Apr 2020 07:34:14 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 710A72064A for ; Thu, 2 Apr 2020 07:34:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 710A72064A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48tFDz6bztzDrRH for ; Thu, 2 Apr 2020 18:34:11 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=haren@linux.ibm.com; receiver=) Authentication-Results: lists.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 lists.ozlabs.org (Postfix) with ESMTPS id 48tDsJ6lJFzDrCQ for ; Thu, 2 Apr 2020 18:17:08 +1100 (AEDT) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03273ueY134812; Thu, 2 Apr 2020 03:16:49 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 304r50dvm5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Apr 2020 03:16:49 -0400 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id 0327470K135283; Thu, 2 Apr 2020 03:16:48 -0400 Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0a-001b2d01.pphosted.com with ESMTP id 304r50dvkq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Apr 2020 03:16:48 -0400 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 0327EQhd032608; Thu, 2 Apr 2020 07:16:47 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 301x77rtpv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 02 Apr 2020 07:16:47 +0000 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0327Gktr54395238 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 Apr 2020 07:16:46 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 87750B2064; Thu, 2 Apr 2020 07:16:46 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 622DEB205F; Thu, 2 Apr 2020 07:16:45 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 2 Apr 2020 07:16:45 +0000 (GMT) Subject: [PATCH v10 10/14] powerpc/vas: Print CRB and FIFO values From: Haren Myneni To: mpe@ellerman.id.au In-Reply-To: <1585810846.2275.23.camel@hbabu-laptop> References: <1585810846.2275.23.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Thu, 02 Apr 2020 00:16:43 -0700 Message-ID: <1585811803.2275.58.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=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-01_04:2020-03-31, 2020-04-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 suspectscore=1 mlxscore=0 malwarescore=0 clxscore=1015 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004020063 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: mikey@neuling.org, ajd@linux.ibm.com, frederic.barrat@fr.ibm.com, linux-kernel@vger.kernel.org, npiggin@gmail.com, hch@infradead.org, oohall@gmail.com, clg@kaod.org, herbert@gondor.apana.org.au, sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, srikar@linux.vnet.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Dump FIFO entries 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 | 41 ++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/arch/powerpc/platforms/powernv/vas-fault.c b/arch/powerpc/platforms/powernv/vas-fault.c index b6bec64..25db70b 100644 --- a/arch/powerpc/platforms/powernv/vas-fault.c +++ b/arch/powerpc/platforms/powernv/vas-fault.c @@ -26,6 +26,28 @@ */ #define VAS_FAULT_WIN_FIFO_SIZE (4 << 20) +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), + be64_to_cpu(crb->stamp.nx.fault_storage_addr), + nx->flags, nx->fault_status); +} + /* * Update the CSB to indicate a translation error. * @@ -148,6 +170,23 @@ static void update_csb(struct vas_window *window, pid_vnr(pid), rc); } +static void dump_fifo(struct vas_instance *vinst, void *entry) +{ + unsigned long *end = vinst->fault_fifo + vinst->fault_fifo_size; + unsigned long *fifo = entry; + int i; + + pr_err("Fault fifo size %d, Max crbs %d\n", vinst->fault_fifo_size, + vinst->fault_fifo_size / CRB_SIZE); + + /* Dump 10 CRB entries or until end of FIFO */ + pr_err("Fault FIFO Dump:\n"); + for (i = 0; i < 10*(CRB_SIZE/8) && fifo < end; 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 valid CRBs in fault FIFO. * NX process user space requests, return credit and update the status @@ -233,6 +272,7 @@ irqreturn_t vas_fault_thread_fn(int irq, void *data) vinst->vas_id, vinst->fault_fifo, fifo, vinst->fault_crbs); + dump_crb(crb); window = vas_pswid_to_window(vinst, be32_to_cpu(crb->stamp.nx.pswid)); @@ -245,6 +285,7 @@ irqreturn_t vas_fault_thread_fn(int irq, void *data) * But we should not get here. * TODO: Disable IRQ. */ + dump_fifo(vinst, (void *)entry); pr_err("VAS[%d] fault_fifo %p, fifo %p, pswid 0x%x, fault_crbs %d bad CRB?\n", vinst->vas_id, vinst->fault_fifo, fifo, be32_to_cpu(crb->stamp.nx.pswid), -- 1.8.3.1