From patchwork Fri Feb 2 19:59:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 13543451 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 D9F7EC4828F for ; Fri, 2 Feb 2024 21:04:12 +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=fLuGHzWoKW46VnB+drJTx7tygQdxFtpHMc1GXREqpwY=; b=OQUpmkxEmzS/rc K+j0eRXFSsliyl7R+g/qx1zDWL/YT5SrL281RQNpxge0yZlibrTlZo3sSHV7OEv/ypqUA9UuGoUuz FJOQkjBctaoh2UmQRVttWRAFuliChlaHOSoCk9FDQE8FqPkaUDCIc3yqUFdezenbaQFjv8lsL866o lk61ALA79hmGDXNSyjhqzh8XuCoS9Hmgg64SdVpVZPAELyJxB1O+HDLdmWx0uNCY+cP6J+KM94wkZ Eqq/wyPhE/GVZQBx1z5NntQcrqHp13qXjm98y9UkFpJZIzjJrrBScyfjCz/E3leXw3IUDuavffeqS WvHn6Li4AeVLm7RKK7CA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rW0hB-0000000DSxh-2oKf; Fri, 02 Feb 2024 21:03:44 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rVzgv-0000000DI2Y-1frW; Fri, 02 Feb 2024 19:59:14 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 0ACF96285A; Fri, 2 Feb 2024 19:59:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A80D3C433C7; Fri, 2 Feb 2024 19:59:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706903951; bh=fWj3GhXqevF1vJtluLE30ASb6yuFLCaIkc/D6dzeitk=; h=From:To:Cc:Subject:Date:From; b=R2QLYzmYFMMjI7P1p5u5HXdEmCJTdD+rg7Ivrmi/4Sa4+InZYD1qQ2lmGiA8MnwGw jp7kUgzY6ezHkErO7zYoaCSiNCg6jqoXuqUUK14R5DlnJo/nQ57GfqYnmbX66lWgvE rXZEly8xcwh/bXQe7IWRZ0u95hoMGFA7Y9Qkj92EwdHGkNVyZSmVxih4qAevuyAGD6 QNn33JJNy5UbmY5q6+1kakAUD5RnLvzfXQLl4TbqA0AV/sMxfDbi6m+DXYOtPSx9yB DR7GmkkiSeYiQCFokKasKaCo9KDV5t+ezY+YynZG0ieOENsJ4zGdm5iXxwvypSU7A6 mZUQv6RHuDEZA== 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, Anton Ivanov , Brendan Higgins , Catalin Marinas , David Gow , Frank Rowand , Johannes Berg , Richard Weinberger , Will Deacon , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Saurabh Sengar Subject: [PATCH v3 0/7] of: populate of_root node if bootloader doesn't Date: Fri, 2 Feb 2024 11:59:01 -0800 Message-ID: <20240202195909.3458162-1-sboyd@kernel.org> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240202_115913_567490_7675EFB4 X-CRM114-Status: GOOD ( 14.85 ) 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 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 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 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 | 11 ++++++- drivers/of/Makefile | 4 ++- drivers/of/empty_root.dts | 6 ++++ drivers/of/fdt.c | 64 +++++++++++++++++++++++++++--------- drivers/of/of_test.c | 48 +++++++++++++++++++++++++++ drivers/of/platform.c | 3 -- drivers/of/unittest.c | 16 +++------ include/linux/of.h | 25 ++++++++------ 12 files changed, 158 insertions(+), 63 deletions(-) create mode 100644 drivers/of/.kunitconfig create mode 100644 drivers/of/empty_root.dts create mode 100644 drivers/of/of_test.c Cc: Anton Ivanov Cc: Brendan Higgins Cc: Catalin Marinas Cc: David Gow Cc: Frank Rowand Cc: Johannes Berg Cc: Richard Weinberger Cc: Rob Herring Cc: Will Deacon Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: Cc: "H. Peter Anvin" Cc: Saurabh Sengar [1] https://lore.kernel.org/r/20230317053415.2254616-1-frowand.list@gmail.com base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a