From patchwork Thu Aug 20 15:08:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Murphy X-Patchwork-Id: 257378 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=-11.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 4ABC3C433E3 for ; Thu, 20 Aug 2020 15:09:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3328521775 for ; Thu, 20 Aug 2020 15:09:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728572AbgHTPI4 (ORCPT ); Thu, 20 Aug 2020 11:08:56 -0400 Received: from foss.arm.com ([217.140.110.172]:40680 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727920AbgHTPIy (ORCPT ); Thu, 20 Aug 2020 11:08:54 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AA18331B; Thu, 20 Aug 2020 08:08:53 -0700 (PDT) Received: from e121345-lin.cambridge.arm.com (e121345-lin.cambridge.arm.com [10.1.196.37]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 1FDC83F6CF; Thu, 20 Aug 2020 08:08:50 -0700 (PDT) From: Robin Murphy To: hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk Cc: will@kernel.org, inki.dae@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, m.szyprowski@samsung.com, agross@kernel.org, bjorn.andersson@linaro.org, thierry.reding@gmail.com, jonathanh@nvidia.com, vdumpa@nvidia.com, digetx@gmail.com, matthias.bgg@gmail.com, yong.wu@mediatek.com, geert+renesas@glider.be, magnus.damm@gmail.com, t-kristo@ti.com, s-anna@ti.com, laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 00/18] Convert arch/arm to use iommu-dma Date: Thu, 20 Aug 2020 16:08:19 +0100 Message-Id: X-Mailer: git-send-email 2.28.0.dirty MIME-Version: 1.0 Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Hi all, After 5 years or so of intending to get round to this, finally the time comes! The changes themselves actualy turn out to be relatively mechanical; the bigger concern appears to be how to get everything merged across about 5 diffferent trees given the dependencies. I've lightly boot-tested things on Rockchip RK3288 and Exynos 4412 (Odroid-U3), to the degree that their display drivers should be using IOMMU-backed buffers and don't explode (the Odroid doesn't manage to send a working HDMI signal to the one monitor I have that it actually detects, but that's a pre-existing condition...) Confirmation that the Mediatek, OMAP and Tegra changes work will be most welcome. Patches are based on 5.9-rc1, branch available here: git://linux-arm.org/linux-rm arm/dma Robin. Robin Murphy (18): ARM/dma-mapping: Drop .dma_supported for IOMMU ops ARM/dma-mapping: Consolidate IOMMU ops callbacks ARM/dma-mapping: Merge IOMMU ops iommu/dma: Add temporary hacks for arch/arm ARM/dma-mapping: Switch to iommu_dma_ops ARM/dma-mapping: Support IOMMU default domains iommu/arm-smmu: Remove arch/arm workaround iommu/renesas: Remove arch/arm workaround iommu/mediatek-v1: Add IOMMU_DOMAIN_DMA support iommu/msm: Add IOMMU_DOMAIN_DMA support iommu/omap: Add IOMMU_DOMAIN_DMA support iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support iommu/tegra: Add IOMMU_DOMAIN_DMA support drm/exynos: Consolidate IOMMU mapping code drm/nouveau/tegra: Clean up IOMMU workaround staging/media/tegra-vde: Clean up IOMMU workaround media/omap3isp: Clean up IOMMU workaround ARM/dma-mapping: Remove legacy dma-iommu API arch/arm/Kconfig | 28 +- arch/arm/common/dmabounce.c | 1 - arch/arm/include/asm/device.h | 9 - arch/arm/include/asm/dma-iommu.h | 37 - arch/arm/mm/dma-mapping.c | 1198 +---------------- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 5 +- drivers/gpu/drm/exynos/exynos7_drm_decon.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_dma.c | 61 +- drivers/gpu/drm/exynos/exynos_drm_drv.h | 6 +- drivers/gpu/drm/exynos/exynos_drm_fimc.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_gsc.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_rotator.c | 5 +- drivers/gpu/drm/exynos/exynos_drm_scaler.c | 6 +- drivers/gpu/drm/exynos/exynos_mixer.c | 7 +- .../drm/nouveau/nvkm/engine/device/tegra.c | 13 - drivers/iommu/Kconfig | 8 - drivers/iommu/arm/arm-smmu/arm-smmu.c | 10 - drivers/iommu/ipmmu-vmsa.c | 69 - drivers/iommu/msm_iommu.c | 7 +- drivers/iommu/mtk_iommu.h | 2 - drivers/iommu/mtk_iommu_v1.c | 153 +-- drivers/iommu/omap-iommu.c | 22 +- drivers/iommu/tegra-gart.c | 17 +- drivers/iommu/tegra-smmu.c | 37 +- drivers/media/platform/Kconfig | 1 - drivers/media/platform/omap3isp/isp.c | 68 +- drivers/media/platform/omap3isp/isp.h | 3 - drivers/staging/media/tegra-vde/iommu.c | 12 - 30 files changed, 150 insertions(+), 1660 deletions(-) delete mode 100644 arch/arm/include/asm/dma-iommu.h Tested-by: Yong Wu Acked-by: Inki Dae