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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3D7F8C7115B for ; Mon, 23 Jun 2025 19:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=e3crIOVHvSiT8ybXbjLSzozvmXZx5+Sxr9ykzh6ue+I=; b=IX+yuXPGogfOpBJhmQF9sUpK3Z nJBQiAOKjOj7a4RxUWs1YD2WqOnUsU+EVBTm4eXlJdsEivBXrI+l2uPV1F9EY2LkY5/oKXQ5LReXh fCQXxgbysDrwc+HN1dIxOlBw9bbiPN1YU7swtJ25V03cZwuizC6Ptb41qZ0Fv4LRHlHHl/VFTz9qr HLdpoWfNFI1bsDt9DEgSJA4pQqhjcB3tYCxEDrmqthsHu1LxnwnnZVFHflcub1c5zZrHF9YUJt2HT 6gWpHhBAlGa/GdT65wvGUGBgKIDk1HxZhM2P44He0alR4M/T8Y/goeCQq3B6YD8o7aRyj4LIOA6KV OG6lY85Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uTn3H-00000003oyE-1ERd; Mon, 23 Jun 2025 19:41:59 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uTjGk-00000003GlF-3TYO; Mon, 23 Jun 2025 15:39:40 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1750693177; bh=aVrmiw2qRUbdUpucsvmioXo0nQtR+G3MliMgq4T6rFc=; h=From:To:Cc:Subject:Date:From; b=Tt1VWMvynd6p2UEDs3YRrt1i+HpbW0yWalaf1cb3viXW0hNL0RvnxjmeEYInqr9PY gVKqxT7gG1B7OF3/kxI/GWgTNBCFhmH5+E5OuGy1s8bf4GyVcvaxyhe9pNyb3iRdAJ 0DxbRdLfz4hUAnmXNJyNHr67FQW6JsDg2agDGJFimyT2p1w8bo2NXP2yno8KXOQ2GP jejSmtiB0Kc279Pxs1zxmjhLVjc98GwubER1pad/dRGW8YIt4KbFiR0NiuF3jvkSxd EJ92+mC50sCdq2NLYBkpZ5NcGh6GJTPb91IT5nHi5q1mvpfmsOUbj8+v2OSWjOQ15V Fq+cUVp0tpYSg== Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:d44b:b63b:15ee:9c1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bali.collaboradmins.com (Postfix) with ESMTPSA id A079117E07F2; Mon, 23 Jun 2025 17:39:36 +0200 (CEST) From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, heiko@sntech.de, nicolas.dufresne@collabora.com, jgg@ziepe.ca Cc: iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v4 0/5] Add support for Verisilicon IOMMU used by media codec blocks Date: Mon, 23 Jun 2025 17:39:24 +0200 Message-ID: <20250623153931.158765-1-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Type: text/plain; charset=a Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250623_083939_024838_A3FE9B72 X-CRM114-Status: GOOD ( 19.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi all, This patch series adds support for the Verisilicon IOMMU, which is found in front of hardware encoder and decoder blocks in several SoCs using Verisilicon IP. A first implementation of this IOMMU is available on the Rockchip RK3588 SoC. Rockchip provides a driver for this hardware in their 6.1 kernel branch: https://github.com/rockchip-linux/kernel/blob/develop-6.1/drivers/iommu/rockchip-iommu-av1d.c This series includes: - a new binding for the Verisilicon IOMMU - a driver implementation - DT updates for RK3588 The driver was forward-ported from Rockchip’s 6.1 implementation, the prefix was renamed to vsi for generality, and several fixes were applied. AV1 decoding was tested using the stateless VPU driver and Fluster. The test results show a score of 205/239, which confirms that no regressions were introduced by this series. Feedback and testing welcome. changes in version 4: - rename and reorder compatibles fields. - Kconfig dependencies - Fix the remarks done by Jason and Robin: locking, clocks, macros probing, pm_runtime, atomic allocation. changes in version 3: - Change compatible to "rockchip,rk3588-iommu-1.2" - Fix compatible in .yaml - Update DT and driver to use "rockchip,rk3588-iommu-1.2" compatible - Set CONFIG_VSI_IOMMU as module in defconfig - Create an identity domain for the driver - Fix double flush issue - Rework attach/detach logic - Simplify xlate function - Discover iommu device like done in ARM driver - Remove ARM_DMA_USE_IOMMU from Kconfig changes in version 2: - Add a compatible "rockchip,rk3588-av1-iommu" - Fix clock-names in binding - Remove "vsi_mmu" label in binding example. - Rework driver probe function - Remove double flush - Rework driver internal structures and avoid allocate in xlate function. - Do not touch to VPU driver anymore (path removed) - Add a patch to enable the driver in arm64 defconfig Benjamin Gaignard (5): dt-bindings: vendor-prefixes: Add Verisilicon dt-bindings: iommu: verisilicon: Add binding for VSI IOMMU iommu: Add verisilicon IOMMU driver arm64: dts: rockchip: Add verisilicon IOMMU node on RK3588 arm64: defconfig: enable Verisilicon IOMMU .../bindings/iommu/verisilicon,iommu.yaml | 71 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 11 + arch/arm64/configs/defconfig | 1 + drivers/iommu/Kconfig | 11 + drivers/iommu/Makefile | 1 + drivers/iommu/vsi-iommu.c | 741 ++++++++++++++++++ 7 files changed, 838 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/verisilicon,iommu.yaml create mode 100644 drivers/iommu/vsi-iommu.c -- 2.43.0