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=-3.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_MIXED_ES, 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 B0E57C65BAF for ; Wed, 12 Dec 2018 20:52:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 617C02080F for ; Wed, 12 Dec 2018 20:52:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EVie0Buf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 617C02080F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727107AbeLLUwA (ORCPT ); Wed, 12 Dec 2018 15:52:00 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:35595 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726294AbeLLUwA (ORCPT ); Wed, 12 Dec 2018 15:52:00 -0500 Received: by mail-pf1-f194.google.com with SMTP id z9so9447577pfi.2; Wed, 12 Dec 2018 12:51:59 -0800 (PST) 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=9QL/fH6yYMula8jLl5mVxMOT2iB/Q14YZLve/5K/uPA=; b=EVie0BufpDMJK68/nW+z6XIs0mNSUuKUS1OCctFyKh20QNM/i/0bUnx2cIK/OeVnbd FBZ0t/VwGZnoBa0WSSsEoc6YDv1sI36mXMlnHX4QBtPpcoOfBQwqsE4qvfzJSFsf8rjL K+KT4v91SZPSb6UMC2Gnd1BPZq5F9sTvOcMIeDkVzEaRPM/SpnFMttXpw+A7wTnjl5st PD49j9CkvD9aFQMJIGxNqGNTq0Febx51KmdqCy6IIMQUAI1FDgAaAskU1O9gdRk8TFRi dB8icsYbcs9QpmqLerg0Jv6a90Ah+h+81jRvXZdEq99/W3CimdxD8fmlhHWIeR9KFDK9 4hoQ== 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=9QL/fH6yYMula8jLl5mVxMOT2iB/Q14YZLve/5K/uPA=; b=GfdE5kUxzdDqjw2oNJWsLrJjgCBdJ22VLgKHfrr7rW6m45Bv4MwIZDM1BegEsc3Ow6 n7amLwuAa80095LSf/OExid3UgsX3/gaMJ/riJhDCnFXVqgB+lrGMRmwvurKmHN6McyN YCQ3zZWMm+aR9ebAg4rp+M9E2zRKjbyEEtRLygBiQiCvfcJKRGTSKrgZdwqX2bVyTN4f /KSGngGmOmaiVPDfpkg4jeXFb5ZylHZbOQ3PeQdAD7JTyMpM28b+X0NONNDiAeIR7cq8 QW3PTGcmonb4pO65EOaXwMQCJ1YI+hvoz1bJ/oSEusHek1qkCinzzWvnOPc+6pPdWG92 /nsA== X-Gm-Message-State: AA+aEWbbSFtak4XkFAr3pWAxAjtXcUAwRSziSnobpiwT6Ob6k+WvzjCo pBq0HMd3rs7Uw39hE7PgPBNS+7Oa X-Google-Smtp-Source: AFSGD/USlGCi2khfP+qmShIH90OWlkWTWJjqPhbdjWo3MnBy7PPPtlF1Iy6c9jIYY6O+KqCXVyzG4w== X-Received: by 2002:a65:6542:: with SMTP id a2mr19352743pgw.389.1544647918822; Wed, 12 Dec 2018 12:51:58 -0800 (PST) Received: from localhost.localdomain ([94.29.36.169]) by smtp.gmail.com with ESMTPSA id p2sm34753860pgc.94.2018.12.12.12.51.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Dec 2018 12:51:58 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Joerg Roedel Cc: Robin Murphy , iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 00/24] Tegra GART driver clean up and optimization Date: Wed, 12 Dec 2018 23:38:43 +0300 Message-Id: <20181212203907.23461-1-digetx@gmail.com> X-Mailer: git-send-email 2.20.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This patch-series integrates the GART (IOMMU) driver with the Memory Controller driver, that allows to report the name of a faulty memory client on GART page fault. A major code clean up and performance optimization is performed in this series as well. Changelog: v7: Addressed review comments to v6 from Thierry Reding. Added three new (minor) patches that further prettifying the drivers code. New patches in v7: 1) "memory: tegra: Do not try to probe SMMU on Tegra20" 2) "memory: tegra: Do not ask for IRQ sharing" 3) "memory: tegra: Clean up error messages" Incorporated another "one-line" change into the "perform code refactoring" patch: now GART translation is kept disabled in HW while GART is suspended. v6: v5 that is re-based on the recent linux-next. v5: Addressed review comments from Thierry Reding to v4. Added WARN_ON() to make sure that active domain isn't getting released, kept include headers where necessary, etc.. All changes are quite minor. Added new patch "memory: tegra: Use relaxed versions of readl/writel". v4: In the v3 Rob Herring requested to make device-tree binding changes backwards-compatible with the older kernels, that is achieved by changing the 'compatible' value of the DT node. The code-refactoring patches got some more (minor) polish. Added new patch "memory: tegra: Use of_device_get_match_data()". v3: Memory Controller integration part has been reworked and now GART's device-tree binding is changed. Adding Rob Herring for the device-tree changes reviewing. GART now disallows more than one active domain at a time. Fixed "spinlock recursion", "NULL pointer dereference" and "detaching of all devices from inactive domains". New code-refactoring patches. The previously standalone patch "memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20" is now included into this series because there is a dependency on that patch and it wasn't applied yet. v2: Addressed review comments from Robin Murphy to v1 by moving devices iommu_fwspec check to gart_iommu_add_device(). Dropped the "Provide single domain and group for all devices" patch from the series for now because after some more considering it became not exactly apparent whether that is what we need, that was also suggested by Robin Murphy in the review comment. Maybe something like a runtime IOMMU usage for devices would be a better solution, allowing to implement transparent context switching of virtual IOMMU domains. Some very minor code cleanups, reworded commit messages. Dmitry Osipenko (24): iommu/tegra: gart: Remove pr_fmt and clean up includes iommu/tegra: gart: Clean up driver probe errors handling iommu/tegra: gart: Ignore devices without IOMMU phandle in DT iommu: Introduce iotlb_sync_map callback iommu/tegra: gart: Optimize mapping / unmapping performance dt-bindings: memory: tegra: Squash tegra20-gart into tegra20-mc ARM: dts: tegra20: Update Memory Controller node to the new binding memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 memory: tegra: Adapt to Tegra20 device-tree binding changes memory: tegra: Read client ID on GART page fault memory: tegra: Use of_device_get_match_data() memory: tegra: Use relaxed versions of readl/writel iommu/tegra: gart: Integrate with Memory Controller driver memory: tegra: Do not try to probe SMMU on Tegra20 memory: tegra: Do not ask for IRQ sharing memory: tegra: Clean up error messages iommu/tegra: gart: Fix spinlock recursion iommu/tegra: gart: Fix NULL pointer dereference iommu/tegra: gart: Allow only one active domain at a time iommu/tegra: gart: Don't use managed resources iommu/tegra: gart: Prepend error/debug messages with "gart:" iommu/tegra: gart: Don't detach devices from inactive domains iommu/tegra: gart: Simplify clients-tracking code iommu/tegra: gart: Perform code refactoring .../bindings/iommu/nvidia,tegra20-gart.txt | 14 - .../memory-controllers/nvidia,tegra20-mc.txt | 27 +- arch/arm/boot/dts/tegra20.dtsi | 15 +- drivers/iommu/Kconfig | 1 + drivers/iommu/iommu.c | 8 +- drivers/iommu/tegra-gart.c | 473 +++++++----------- drivers/iommu/tegra-smmu.c | 4 - drivers/memory/tegra/mc.c | 118 +++-- drivers/memory/tegra/mc.h | 10 +- include/linux/iommu.h | 1 + include/soc/tegra/mc.h | 27 +- 11 files changed, 323 insertions(+), 375 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iommu/nvidia,tegra20-gart.txt -- 2.20.0