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: 769314 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 130AE80605; Fri, 2 Feb 2024 19:59:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706903952; cv=none; b=YmeN40CYbqt0GyfkRoZbCWi+Npia1yHZMNQSuieNrg/R6i2advHBhxv0y70Z08iKArtdps4edU2yYwduQU+HO+6Jh0Nj4yqznyreC+3II1XrO28/3PiJ9hjOR8V3TnRlHTE11KqXrg1Ye1nQmRA+5vpXS8WBwq96IglIOmp7Faw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706903952; c=relaxed/simple; bh=fWj3GhXqevF1vJtluLE30ASb6yuFLCaIkc/D6dzeitk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ojyvozBB1Bk9VMGHA8sMaCQPs4Q3GZIgbU/HSaVjFt2UTD+nfK81KkOyfu+vHX1n1PHRfPxsNewCge8tOq8RV2ksGNKA7PWLBPoX+Ful+oGObr6ATcLFoGYkRIve+5hK815Q14dYGL15Za1ChUhwe0HPIYfSz5Us/almve4uMkw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=R2QLYzmY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="R2QLYzmY" 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 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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