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, URIBL_BLOCKED,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 D41EEC3A5A3 for ; Fri, 30 Aug 2019 07:19:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A785723407 for ; Fri, 30 Aug 2019 07:19:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728517AbfH3HTK (ORCPT ); Fri, 30 Aug 2019 03:19:10 -0400 Received: from mga01.intel.com ([192.55.52.88]:62229 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726236AbfH3HTJ (ORCPT ); Fri, 30 Aug 2019 03:19:09 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Aug 2019 00:19:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,446,1559545200"; d="scan'208";a="182576927" Received: from allen-box.sh.intel.com ([10.239.159.136]) by fmsmga007.fm.intel.com with ESMTP; 30 Aug 2019 00:19:05 -0700 From: Lu Baolu To: David Woodhouse , Joerg Roedel , Bjorn Helgaas , Christoph Hellwig Cc: ashok.raj@intel.com, jacob.jun.pan@intel.com, alan.cox@intel.com, kevin.tian@intel.com, mika.westerberg@linux.intel.com, Ingo Molnar , Greg Kroah-Hartman , pengfei.xu@intel.com, Konrad Rzeszutek Wilk , Marek Szyprowski , Robin Murphy , Jonathan Corbet , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , Steven Rostedt , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu , Jacob Pan Subject: [PATCH v8 6/7] iommu/vt-d: Add trace events for device dma map/unmap Date: Fri, 30 Aug 2019 15:17:17 +0800 Message-Id: <20190830071718.16613-7-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190830071718.16613-1-baolu.lu@linux.intel.com> References: <20190830071718.16613-1-baolu.lu@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds trace support for the Intel IOMMU driver. It also declares some events which could be used to trace the events when an IOVA is being mapped or unmapped in a domain. Cc: Ashok Raj Cc: Jacob Pan Cc: Kevin Tian Signed-off-by: Mika Westerberg Signed-off-by: Lu Baolu Reviewed-by: Steven Rostedt (VMware) --- drivers/iommu/Makefile | 1 + drivers/iommu/intel-trace.c | 14 +++++ include/trace/events/intel_iommu.h | 84 ++++++++++++++++++++++++++++++ 3 files changed, 99 insertions(+) create mode 100644 drivers/iommu/intel-trace.c create mode 100644 include/trace/events/intel_iommu.h diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile index f13f36ae1af6..bfe27b2755bd 100644 --- a/drivers/iommu/Makefile +++ b/drivers/iommu/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_ARM_SMMU) += arm-smmu.o obj-$(CONFIG_ARM_SMMU_V3) += arm-smmu-v3.o obj-$(CONFIG_DMAR_TABLE) += dmar.o obj-$(CONFIG_INTEL_IOMMU) += intel-iommu.o intel-pasid.o +obj-$(CONFIG_INTEL_IOMMU) += intel-trace.o obj-$(CONFIG_INTEL_IOMMU_DEBUGFS) += intel-iommu-debugfs.o obj-$(CONFIG_INTEL_IOMMU_SVM) += intel-svm.o obj-$(CONFIG_IPMMU_VMSA) += ipmmu-vmsa.o diff --git a/drivers/iommu/intel-trace.c b/drivers/iommu/intel-trace.c new file mode 100644 index 000000000000..bfb6a6e37a88 --- /dev/null +++ b/drivers/iommu/intel-trace.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel IOMMU trace support + * + * Copyright (C) 2019 Intel Corporation + * + * Author: Lu Baolu + */ + +#include +#include + +#define CREATE_TRACE_POINTS +#include diff --git a/include/trace/events/intel_iommu.h b/include/trace/events/intel_iommu.h new file mode 100644 index 000000000000..9c28e6cae86f --- /dev/null +++ b/include/trace/events/intel_iommu.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Intel IOMMU trace support + * + * Copyright (C) 2019 Intel Corporation + * + * Author: Lu Baolu + */ +#ifdef CONFIG_INTEL_IOMMU +#undef TRACE_SYSTEM +#define TRACE_SYSTEM intel_iommu + +#if !defined(_TRACE_INTEL_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_INTEL_IOMMU_H + +#include +#include + +DECLARE_EVENT_CLASS(dma_map, + TP_PROTO(struct device *dev, dma_addr_t dev_addr, phys_addr_t phys_addr, + size_t size), + + TP_ARGS(dev, dev_addr, phys_addr, size), + + TP_STRUCT__entry( + __string(dev_name, dev_name(dev)) + __field(dma_addr_t, dev_addr) + __field(phys_addr_t, phys_addr) + __field(size_t, size) + ), + + TP_fast_assign( + __assign_str(dev_name, dev_name(dev)); + __entry->dev_addr = dev_addr; + __entry->phys_addr = phys_addr; + __entry->size = size; + ), + + TP_printk("dev=%s dev_addr=0x%llx phys_addr=0x%llx size=%zu", + __get_str(dev_name), + (unsigned long long)__entry->dev_addr, + (unsigned long long)__entry->phys_addr, + __entry->size) +); + +DEFINE_EVENT(dma_map, bounce_map_single, + TP_PROTO(struct device *dev, dma_addr_t dev_addr, phys_addr_t phys_addr, + size_t size), + TP_ARGS(dev, dev_addr, phys_addr, size) +); + +DECLARE_EVENT_CLASS(dma_unmap, + TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size), + + TP_ARGS(dev, dev_addr, size), + + TP_STRUCT__entry( + __string(dev_name, dev_name(dev)) + __field(dma_addr_t, dev_addr) + __field(size_t, size) + ), + + TP_fast_assign( + __assign_str(dev_name, dev_name(dev)); + __entry->dev_addr = dev_addr; + __entry->size = size; + ), + + TP_printk("dev=%s dev_addr=0x%llx size=%zu", + __get_str(dev_name), + (unsigned long long)__entry->dev_addr, + __entry->size) +); + +DEFINE_EVENT(dma_unmap, bounce_unmap_single, + TP_PROTO(struct device *dev, dma_addr_t dev_addr, size_t size), + TP_ARGS(dev, dev_addr, size) +); + +#endif /* _TRACE_INTEL_IOMMU_H */ + +/* This part must be outside protection */ +#include +#endif /* CONFIG_INTEL_IOMMU */ -- 2.17.1