From patchwork Sat Feb 17 01:05:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 13561178 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 1149EC48260 for ; Sat, 17 Feb 2024 01:06:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id: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=u5DLgJcCmincYaKR1gPGBYpDk5yChu2rVfumNrG0bvY=; b=JNPBh2Ak0Gy8Af 3Q8OQqrB/CaZF4WgYzGfZt8mv1GT7EZFmDCdj5stKUYJYqLbHW9/nr5/1+kbwX2NhXQd244qez3mS 6JJIjZsJpNBUTbSXEnuSTAHzFG6n51fIbTV0H2Ovv32KvVxGswaW4ebyOlK5goOk/pupEHY+Vawvu x8X012NYijX8ObwSP7+0Cfk0M3Fh9NWe8GaWi0nMagLarEFGG55g5/KyS1ULp5I5MESALRz6/2V3e WQUiNwVP8eF+5Tr3LBIvGgzO0qRGFypl+v0KwwMY2cdGgSMXgmYbrhTPAtzWOdvZGml9du03jATn0 S+3gfexVaZ7d9UIgoIUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rb99v-00000004M01-3xcw; Sat, 17 Feb 2024 01:06:27 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rb99X-00000004Lhd-2tK5; Sat, 17 Feb 2024 01:06:06 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 1AC64CE0E73; Sat, 17 Feb 2024 01:05:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EEBD9C433F1; Sat, 17 Feb 2024 01:05:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708131958; bh=XYeu3I7lleinGqco1HjcUCLcHTbSZ73GuzXfX4TQXmw=; h=From:To:Cc:Subject:Date:From; b=PcUiJwYxnDE+rKcJSARsAYYXXhQqmiAGSPyBcn7kTAHoHf57qbuk/sAnm/DM0k35g KAkza6Ctke1ZP6ZRs5/oWZxbQc1jDBKLfFGtETphQj5EFJl5Q9RTA6cYsGFN7pOD8i rgX1jH/pHSb9Y8Q07vQncUARwWo4LJBV/ifU7Ibpb4vZquazg8/JtiBQaHIXChTqaP +lr5cjiofJD1UAMz7Ru12iOankJ6GV1XA5neOb2wOgScXFdh1tBdXN+L0FbbYeRNCz eu+0avQ1ADa/7W94e/Oci8lyLQzL6PLOWlW9tvRBnZXBMGqA7u+kkjIpDBfKCP80xK 6pu2BIHAFzxNQ== From: Stephen Boyd To: Rob Herring Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, linux-um@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v4 0/7] of: populate of_root node if bootloader doesn't Date: Fri, 16 Feb 2024 17:05:49 -0800 Message-ID: <20240217010557.2381548-1-sboyd@kernel.org> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240216_170604_111807_02D807CA X-CRM114-Status: GOOD ( 11.55 ) 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 Arch maintainers, please ack/review patches. This is a resend of a series from Frank last year[1]. I worked in Rob's review comments to unconditionally call unflatten_device_tree() and fixup/audit calls to of_have_populated_dt() so that behavior doesn't change. I need this series so I can add DT based tests in the clk framework. Either I can merge it through the clk tree once everyone is happy, or Rob can merge it through the DT tree and provide some branch so I can base clk patches on it. Changes from v3 (https://lore.kernel.org/r/20240202195909.3458162-1-sboyd@kernel.org): * Made OF_UNITTEST depend on OF_EARLY_FLATREE * Made OF_EARLY_FLATREE depend on absence of arches that don't call unflatten_device_tree() * Added of_ prefix to dtb_ prefixed KUnit tests * Picked up tags Changes from v2 (https://lore.kernel.org/r/20240130004508.1700335-1-sboyd@kernel.org): * Reorder patches to have OF changes largely first * No longer modify initial_boot_params if ACPI=y * Put arm64 patch back to v1 Changes from v1 (https://lore.kernel.org/r/20240112200750.4062441-1-sboyd@kernel.org): * x86 patch included * arm64 knocks out initial dtb if acpi is in use * keep Kconfig hidden but def_bool enabled otherwise Changes from Frank's series[1]: * Add a DTB loaded kunit test * Make of_have_populated_dt() return false if the DTB isn't from the bootloader * Architecture calls made unconditional so that a root node is always made Frank Rowand (2): of: Create of_root if no dtb provided by firmware of: unittest: treat missing of_root as error instead of fixing up Stephen Boyd (5): of: Always unflatten in unflatten_and_copy_device_tree() um: Unconditionally call unflatten_device_tree() x86/of: Unconditionally call unflatten_and_copy_device_tree() arm64: Unconditionally call unflatten_device_tree() of: Add KUnit test to confirm DTB is loaded arch/arm64/kernel/setup.c | 3 +- arch/um/kernel/dtb.c | 14 ++++---- arch/x86/kernel/devicetree.c | 24 +++++++------- drivers/of/.kunitconfig | 3 ++ drivers/of/Kconfig | 14 ++++++-- drivers/of/Makefile | 4 ++- drivers/of/empty_root.dts | 6 ++++ drivers/of/fdt.c | 64 +++++++++++++++++++++++++++--------- drivers/of/of_test.c | 57 ++++++++++++++++++++++++++++++++ drivers/of/platform.c | 3 -- drivers/of/unittest.c | 16 +++------ include/linux/of.h | 25 ++++++++------ 12 files changed, 168 insertions(+), 65 deletions(-) create mode 100644 drivers/of/.kunitconfig create mode 100644 drivers/of/empty_root.dts create mode 100644 drivers/of/of_test.c [1] https://lore.kernel.org/r/20230317053415.2254616-1-frowand.list@gmail.com base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d