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=-8.2 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=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 E72F3C43603 for ; Mon, 9 Dec 2019 03:36:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C341F2071A for ; Mon, 9 Dec 2019 03:36:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726834AbfLIDgL (ORCPT ); Sun, 8 Dec 2019 22:36:11 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:22652 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726748AbfLIDgL (ORCPT ); Sun, 8 Dec 2019 22:36:11 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xB93Wwmm120286; Sun, 8 Dec 2019 22:35:56 -0500 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 2wrtemgjvu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 08 Dec 2019 22:35:56 -0500 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.36/8.16.0.36) with SMTP id xB93Zuts125372; Sun, 8 Dec 2019 22:35:56 -0500 Received: from ppma01wdc.us.ibm.com (fd.55.37a9.ip4.static.sl-reverse.com [169.55.85.253]) by mx0a-001b2d01.pphosted.com with ESMTP id 2wrtemgjvf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 08 Dec 2019 22:35:56 -0500 Received: from pps.filterd (ppma01wdc.us.ibm.com [127.0.0.1]) by ppma01wdc.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xB93Vl8b019583; Mon, 9 Dec 2019 03:36:00 GMT Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by ppma01wdc.us.ibm.com with ESMTP id 2wr3q5yaac-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 09 Dec 2019 03:36:00 +0000 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xB93ZrhA44892518 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 9 Dec 2019 03:35:54 GMT Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DBCDF6A057; Mon, 9 Dec 2019 03:35:53 +0000 (GMT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 77C3B6A04F; Mon, 9 Dec 2019 03:35:53 +0000 (GMT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 9 Dec 2019 03:35:53 +0000 (GMT) Subject: [PATCH V2 09/13] powerpc/vas: Print CRB and FIFO values From: Haren Myneni To: mpe@ellerman.id.au Cc: hch@infradead.org, mikey@neuling.org, npiggin@gmail.com, herbert@gondor.apana.org.au, linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org, sukadev@linux.vnet.ibm.com In-Reply-To: <1575861522.16318.9.camel@hbabu-laptop> References: <1575861522.16318.9.camel@hbabu-laptop> Content-Type: text/plain; charset="UTF-8" Date: Sun, 08 Dec 2019 19:34:14 -0800 Message-ID: <1575862455.16318.26.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=2019-12-08_07:2019-12-05,2019-12-08 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 malwarescore=0 mlxlogscore=852 priorityscore=1501 adultscore=0 impostorscore=0 phishscore=0 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1912090029 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Dump FIFO entry 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 | 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 88a211b..cf41b65 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, be32_to_cpu(nx->fault_status)); +} + static void notify_process(pid_t pid, u64 fault_addr) { int rc; @@ -154,6 +176,23 @@ static void update_csb(struct vas_window *window, } } +static void dump_fifo(struct vas_instance *vinst, void *entry) +{ + int i; + unsigned long *fifo = entry; + + 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 Entry Dump:\n"); + for (i = 0; i < CRB_SIZE; 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. */ @@ -212,6 +251,7 @@ irqreturn_t vas_fault_handler(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)); @@ -222,6 +262,7 @@ irqreturn_t vas_fault_handler(int irq, void *data) * even clean it up (return credit). * But we should not get here. */ + dump_fifo(vinst, (void *)crb); 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