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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 DBC86C432C0 for ; Fri, 22 Nov 2019 03:08:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B67A720679 for ; Fri, 22 Nov 2019 03:08:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726690AbfKVDIW (ORCPT ); Thu, 21 Nov 2019 22:08:22 -0500 Received: from mga14.intel.com ([192.55.52.115]:53712 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726335AbfKVDIW (ORCPT ); Thu, 21 Nov 2019 22:08:22 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Nov 2019 19:08:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,228,1571727600"; d="scan'208";a="232540432" Received: from allen-box.sh.intel.com ([10.239.159.136]) by fmsmga004.fm.intel.com with ESMTP; 21 Nov 2019 19:08:19 -0800 From: Lu Baolu To: Joerg Roedel Cc: David Woodhouse , ashok.raj@intel.com, jacob.jun.pan@linux.intel.com, kevin.tian@intel.com, Eric Auger , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH 0/5] iommu/vt-d: Consolidate various cache flush ops Date: Fri, 22 Nov 2019 11:04:44 +0800 Message-Id: <20191122030449.28892-1-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Intel VT-d 3.0 introduces more caches and interfaces for software to flush when it runs in the scalable mode. Currently various cache flush helpers are scattered around. This consolidates them by putting them in the existing iommu_flush structure. /* struct iommu_flush - Intel IOMMU cache invalidation ops * * @cc_inv: invalidate context cache * @iotlb_inv: Invalidate IOTLB and paging structure caches when software * has changed second-level tables. * @p_iotlb_inv: Invalidate IOTLB and paging structure caches when software * has changed first-level tables. * @pc_inv: invalidate pasid cache * @dev_tlb_inv: invalidate cached mappings used by requests-without-PASID * from the Device-TLB on a endpoint device. * @p_dev_tlb_inv: invalidate cached mappings used by requests-with-PASID * from the Device-TLB on an endpoint device */ struct iommu_flush { void (*cc_inv)(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm, u64 type); void (*iotlb_inv)(struct intel_iommu *iommu, u16 did, u64 addr, unsigned int size_order, u64 type); void (*p_iotlb_inv)(struct intel_iommu *iommu, u16 did, u32 pasid, u64 addr, unsigned long npages, bool ih); void (*pc_inv)(struct intel_iommu *iommu, u16 did, u32 pasid, u64 granu); void (*dev_tlb_inv)(struct intel_iommu *iommu, u16 sid, u16 pfsid, u16 qdep, u64 addr, unsigned int mask); void (*p_dev_tlb_inv)(struct intel_iommu *iommu, u16 sid, u16 pfsid, u32 pasid, u16 qdep, u64 addr, unsigned long npages); }; The name of each cache flush ops is defined according to the spec section 6.5 so that people are easy to look up them in the spec. Best regards, Lu Baolu Lu Baolu (5): iommu/vt-d: Extend iommu_flush for scalable mode iommu/vt-d: Consolidate pasid cache invalidation iommu/vt-d: Consolidate device tlb invalidation iommu/vt-d: Consolidate pasid-based tlb invalidation iommu/vt-d: Consolidate pasid-based device tlb invalidation drivers/iommu/dmar.c | 61 --------- drivers/iommu/intel-iommu.c | 246 +++++++++++++++++++++++++++++------- drivers/iommu/intel-pasid.c | 39 +----- drivers/iommu/intel-svm.c | 60 ++------- include/linux/intel-iommu.h | 39 ++++-- 5 files changed, 244 insertions(+), 201 deletions(-) -- 2.17.1