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=-9.2 required=3.0 tests=BAYES_00,DATE_IN_PAST_06_12, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,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 237FDC2B9F8 for ; Tue, 25 May 2021 06:11:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 057EF6140F for ; Tue, 25 May 2021 06:11:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230474AbhEYGMp (ORCPT ); Tue, 25 May 2021 02:12:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229621AbhEYGMn (ORCPT ); Tue, 25 May 2021 02:12:43 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B598C061574 for ; Mon, 24 May 2021 23:11:14 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id f22so14396945pfn.0 for ; Mon, 24 May 2021 23:11:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=IdcS0bFy+y6ulhI9jyzfyMDlCSagPAt22qi8j9Vz510=; b=mc4IUwZLJpdkM8bbnvHKPA26QdF+Ie2VdMYPxDl7eC3vIr98RQhLTsZbiRzQV4lZV6 b6rdy5h6snfAVuj2BsDPxPJv4mQfj7sGtfCltHDRuSke2KeyQQpxS6+QvDBjeZBTuCCh 0PvUc6xRGYUW/6U7gz2fBhTDRSPZyLCrr3fdK0u3bF8TtBdZRi26JGxaA4ZXZmDt1FNn fYDS6sWJrW6HnXloZWf3lBGURTFw1NRUoXBdTG6IqIin0yXnGe/9m9SKHe+mqYg+nFSr w6Dsrg6whm32mkaNx1jwiUEAiDlWcUcPiDebNsaxn4fdeMho6yqb7wC1Tkv4+sIVf8nf tyaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=IdcS0bFy+y6ulhI9jyzfyMDlCSagPAt22qi8j9Vz510=; b=qQRcJr3ElHxbBmoRyY8Yziwm6ZkFwVK7c/SBXc9LT1BBTralTUyPf+BOAQULZwtQUc n2v9gKbRwatK+U/ElMRD3Bis2ZEqtAJbtjtI+x37XXG11x9QbmtBpCkczXsVvHPcssia jV5N6kJn0XxjsTuaKg9Z6K6FGwELFmMaFgwl4UKSJ2IFhvy14Sp7Z7yyZaDkM6m4s+U3 zw73Qj3pwT/AQO694DjsEFy0FT7xkYN91RJQKjB/IVGQ1O5ATK3MmR8WboWTbFfSJvjl BH4xIOgc5/wkaheA+i6w8U1aqMvWct3RDZDcruGavmp8A4NGLZ6OV3+RnCdLuh7hfptq xvrQ== X-Gm-Message-State: AOAM533oC/XRZTAy+iBoLY9Ae0+ETnWRQ9EnVWhOp9whXyv/122zq6u/ UekP7oTyb6ApXG3EhFKzN/E= X-Google-Smtp-Source: ABdhPJxHFskWnQ3Twf0BOzSFH/LrWOUSxi3nuj1D6nt0WdQu2zeZNePHmRy1XEpqnnuunDpeUbBlcw== X-Received: by 2002:a63:3444:: with SMTP id b65mr17373426pga.185.1621923073765; Mon, 24 May 2021 23:11:13 -0700 (PDT) Received: from sc2-haas01-esx0118.eng.vmware.com ([66.170.99.1]) by smtp.gmail.com with ESMTPSA id h3sm12452301pgp.10.2021.05.24.23.11.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 23:11:13 -0700 (PDT) From: Nadav Amit X-Google-Original-From: Nadav Amit To: Joerg Roedel Cc: Nadav Amit , Will Deacon , Jiajun Cao , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/4] iommu/amd: Enable page-selective flushes Date: Mon, 24 May 2021 15:41:55 -0700 Message-Id: <20210524224159.32807-1-namit@vmware.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nadav Amit The previous patch, commit 268aa4548277 ("iommu/amd: Page-specific invalidations for more than one page") was supposed to enable page-selective IOTLB flushes on AMD. The patch had an embaressing bug, and I apologize for it. Analysis as for why this bug did not result in failures raised additional issues that caused at least most of the IOTLB flushes not to be page-selective ones. The first patch corrects the bug from the previous patch. The next patches enable page-selective invalidations, which were not enabled despite the previous patch. Cc: Joerg Roedel Cc: Will Deacon Cc: Jiajun Cao Cc: iommu@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org --- v1->v2: * Rebase on v5.13-rc3 Nadav Amit (4): iommu/amd: Fix wrong parentheses on page-specific invalidations iommu/amd: Selective flush on unmap iommu/amd: Do not sync on page size changes iommu/amd: Do not use flush-queue when NpCache is on drivers/iommu/amd/init.c | 7 ++++++- drivers/iommu/amd/iommu.c | 18 +++++++++++++++--- include/linux/iommu.h | 3 ++- 3 files changed, 23 insertions(+), 5 deletions(-) -- 2.25.1