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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 37A27C3A589 for ; Thu, 15 Aug 2019 20:09:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0EF222171F for ; Thu, 15 Aug 2019 20:09:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733309AbfHOUJu (ORCPT ); Thu, 15 Aug 2019 16:09:50 -0400 Received: from mga18.intel.com ([134.134.136.126]:43474 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733203AbfHOUJr (ORCPT ); Thu, 15 Aug 2019 16:09:47 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Aug 2019 13:09:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,389,1559545200"; d="scan'208";a="188596207" Received: from jacob-builder.jf.intel.com ([10.7.199.155]) by orsmga002.jf.intel.com with ESMTP; 15 Aug 2019 13:09:42 -0700 From: Jacob Pan To: iommu@lists.linux-foundation.org, LKML , Joerg Roedel , David Woodhouse , Alex Williamson Cc: Eric Auger , "Yi Liu" , "Tian, Kevin" , Raj Ashok , "Christoph Hellwig" , Jean-Philippe Brucker , "Lu Baolu" , Jonathan Cameron Subject: [PATCH v5 04/19] iommu: Use device fault trace event Date: Thu, 15 Aug 2019 13:13:10 -0700 Message-Id: <1565900005-62508-5-git-send-email-jacob.jun.pan@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1565900005-62508-1-git-send-email-jacob.jun.pan@linux.intel.com> References: <1565900005-62508-1-git-send-email-jacob.jun.pan@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jean-Philippe Brucker For performance and debugging purposes, these trace events help analyzing device faults that interact with IOMMU subsystem. E.g. IOMMU:0000:00:0a.0 type=2 reason=0 addr=0x00000000007ff000 pasid=1 group=1 last=0 prot=1 Signed-off-by: Jacob Pan [JPB: removed invalidate event, that will be added later] Signed-off-by: Jean-Philippe Brucker Signed-off-by: Jacob Pan --- drivers/iommu/iommu.c | 2 ++ include/trace/events/iommu.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 8f2c7d5..feada31 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1098,6 +1098,7 @@ int iommu_report_device_fault(struct device *dev, struct iommu_fault_event *evt) mutex_unlock(&fparam->lock); kfree(evt_pending); } + trace_dev_fault(dev, &evt->fault); done_unlock: mutex_unlock(¶m->lock); return ret; @@ -1146,6 +1147,7 @@ int iommu_page_response(struct device *dev, msg->flags = pasid_valid ? IOMMU_PAGE_RESP_PASID_VALID : 0; ret = domain->ops->page_response(dev, evt, msg); + trace_dev_page_response(dev, msg); list_del(&evt->list); kfree(evt); break; diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h index 767b92c..7a7801b 100644 --- a/include/trace/events/iommu.h +++ b/include/trace/events/iommu.h @@ -219,7 +219,7 @@ TRACE_EVENT(dev_fault, TRACE_EVENT(dev_page_response, - TP_PROTO(struct device *dev, struct iommu_fault_page_response *msg), + TP_PROTO(struct device *dev, struct iommu_page_response *msg), TP_ARGS(dev, msg), -- 2.7.4