From patchwork Tue Feb 28 20:21:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 1749604 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=svenpeter.dev header.i=@svenpeter.dev header.a=rsa-sha256 header.s=fm1 header.b=VNnIAw7Z; dkim=pass (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.a=rsa-sha256 header.s=fm1 header.b=gP+yMM/O; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4PR80c3pGZz1yWy for ; Wed, 1 Mar 2023 07:21:52 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229437AbjB1UVt (ORCPT ); Tue, 28 Feb 2023 15:21:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229520AbjB1UVs (ORCPT ); Tue, 28 Feb 2023 15:21:48 -0500 Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77E2734037; Tue, 28 Feb 2023 12:21:42 -0800 (PST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id 24B58320027A; Tue, 28 Feb 2023 15:21:41 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Tue, 28 Feb 2023 15:21:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=cc:cc:content-transfer-encoding:date:date:from:from :in-reply-to:message-id:mime-version:reply-to:sender:subject :subject:to:to; s=fm1; t=1677615700; x=1677702100; bh=80HN6tNx1o zGuvhWGo3Rdaml7NQ1ggVCX7mzw8UAeq4=; b=VNnIAw7Z+so5a+07y3LSfMCrG8 olIHuKQ4ehz/JcEbUxjawVcyh+XebLoflCRa79c8n+jkl55K82TIVT+2E//jm2hn tZLek8JsY5s2X+I2cF67j1aFGlXTr1IiWoFDP79zM65tkJ1wfNYocD1uCYIcT6Jl a1yin/aBCTZGVaKY0bQgSHdQ31qfOaEYh84SMC7LNsceMz7MKOZPnnVroGVMzDEZ GkRB66Y4Ky9mr5jrrKhudFc0uqLgs+reaDq9PfwWPp/+Jchu2g7ELabZ+k6I00sR AEi3ewVJWl+woqSSSGg2JNJK5+17zit7YCiFdCux4DEtl3d1Gs5pwk2d/bIQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:message-id :mime-version:reply-to:sender:subject:subject:to:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1677615700; x=1677702100; bh=80HN6tNx1ozGuvhWGo3Rdaml7NQ1ggVCX7m zw8UAeq4=; b=gP+yMM/OKUfYKb9I4a53t7ZaW01eyg/xajf+r8BWcDUAWw08xNp //DaQKJsfU60GlTj60fCm666+lUHKf1SLnqF32wdjoK5qs5ZjBBvrMd2zN8tT/kt QXxex/eqRN4q9/wdPue2nlbQDO8nOGVc7ygdjPxLeSPgKu8e133soWl6LlZNrm2e Pl1XgNDXTwFp7TrEZhI57Nde2+P7cAvoaLqd9BWSUh6YxsyHaurQBuCOlR+LtxDd Sgy4/5jZFX69fnKHaOd4LgiaO3olY6u0F8mJXVwC6+lNeZf6EmePksBdVEPAysH9 U6wlHViFIjyhtsIW73kxuX8XOjgUIDFNxbg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrudelfedgjeefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgggfestdekredtredttdenucfhrhhomhepufhvvghnucfr vghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtthgvrh hnpeeludffieehueevtdffvedtueelleejuddugfettdevhfefffdvgffhjeehgfelleen ucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvhgvnh esshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Feedback-ID: i51094778:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 28 Feb 2023 15:21:38 -0500 (EST) From: Sven Peter To: Hector Martin , Sven Peter Cc: Rob Herring , Krzysztof Kozlowski , Alyssa Rosenzweig , Joerg Roedel , Will Deacon , Robin Murphy , linux-arm-kernel@lists.infradead.org, asahi@lists.linux.dev, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/4] Apple M1 USB4/Thunderbolt DART support Date: Tue, 28 Feb 2023 21:21:28 +0100 Message-Id: <20230228202132.4919-1-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) MIME-Version: 1.0 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi, The M1 SoCs have a second slightly different variant of the regular DART used for the USB4 PCIe ports. It supports 64 instead of 16 streams which requires a minor change to the MMIO layout. There seems to be no way to tell them apart from the regular DARTs by just looking at the DART_PARAMs register so we have to add a new compatible for those. Change since v1: - apple,t8103-usb4-dart instead of apple,t8103-dart-usb4 as the compatible - collected Hector's tags Best, Sven Sven Peter (4): dt-bindings: iommu: dart: Add t8103-usb4-dart compatible iommu: dart: Add flag to override bypass support iommu: dart: Write to all DART_T8020_STREAM_SELECT iommu: dart: Add support for t8103 USB4 DART .../devicetree/bindings/iommu/apple,dart.yaml | 1 + drivers/iommu/apple-dart.c | 42 ++++++++++++++++++- 2 files changed, 41 insertions(+), 2 deletions(-)