From mboxrd@z Thu Jan 1 00:00:00 1970 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 46AC12E172D; Sun, 24 Aug 2025 18:09:45 +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=1756058985; cv=none; b=rhIJEmv+DFp6h5YXESNEsxxoP11cp9Ykv3roUZRM00Ty+Phbu/Tj4garE5p+YYBkvRjsoEdhAlP2LRrvG6tPdzrGJaJ/z0/qKjDRGk4Ve/ipQUxe1GmQ0qInznJ8AEdDCWuhitbikjKTalVH7C3NyArAg+WK1sunLTgMWWcJpHY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756058985; c=relaxed/simple; bh=2jFcS7RMzBU3cP0FxT/WG01cmzVqgCgNvZZKtC23fog=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=cWSvxYwrpLqm/cIB5plaUiVQ9Wmh0LwLcbWwteFEsBleOZuycT4O26wq7PXLjElAJLu01b42p/GRbjTjgQyoSqcL9u01r7G11HrTUypJrHf1bmH/IY3gN2nFCBn2gyrMUWZUnWRBWm05oey8YR6S8PnG9uqueAcKe6EivvmUTdo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PxkUux/d; 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="PxkUux/d" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1A2EC4CEF4; Sun, 24 Aug 2025 18:09:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756058985; bh=2jFcS7RMzBU3cP0FxT/WG01cmzVqgCgNvZZKtC23fog=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=PxkUux/dfAZ5WdFrXk1fI8RkhNPTfdhbdVU4+dfXg7oWG67LIFao2MaHOrxLOF0QE O8e2rla0zuY5bMKRvB5xbIA2312MgxI4S3m9I4SHfWwOmrQTBsSBXKupQTec38kxat kr7ehTBIt9ELHz9aTtglbQG0B4LsPY1xzfy/Q+RILYJo9OTs32wJj7/RXqCHijXZML +J0/VMiL4Kn1Toqb8MJ7lyA88QFAzngNq56HN8GA5kBQy/GeqimGgXScoasHfBKg1S EEZWRNfzEixN6LOvUb/BF/Nw3ElkQ1GrhAIZ1iMR+2vRzP/wFuPsuRCHC5lJomzGUf PqmSoW4h8X2tw== Message-ID: <172e9dd6-3b25-4fdf-943e-2bd559117519@kernel.org> Date: Sun, 24 Aug 2025 19:25:20 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 02/33] drivers: base: cacheinfo: Add helper to find the cache size from cpu+level To: James Morse , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org Cc: shameerali.kolothum.thodi@huawei.com, D Scott Phillips OS , carl@os.amperecomputing.com, lcherian@marvell.com, bobo.shaobowang@huawei.com, tan.shaopeng@fujitsu.com, baolin.wang@linux.alibaba.com, Jamie Iles , Xin Hao , peternewman@google.com, dfustini@baylibre.com, amitsinght@marvell.com, David Hildenbrand , Rex Nie , Dave Martin , Koba Ko , Shanker Donthineni , fenghuay@nvidia.com, baisheng.gao@unisoc.com, Jonathan Cameron , Rob Herring , Rohit Mathew , Rafael Wysocki , Len Brown , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon , Greg Kroah-Hartman , Danilo Krummrich References: <20250822153048.2287-1-james.morse@arm.com> <20250822153048.2287-3-james.morse@arm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/08/2025 17:29, James Morse wrote: > MPAM needs to know the size of a cache associated with a particular CPU. > The DT/ACPI agnostic way of doing this is to ask cacheinfo. > > Add a helper to do this. > > Signed-off-by: James Morse > > --- > Changes since v1: You marked this as v1. > * Converted to kdoc. > * Simplified helper to use get_cpu_cacheinfo_level(). Please use consistent subject prefixes. Look at previous patch subject prefix. Best regards, Krzysztof