From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D9F132FD1CF; Fri, 10 Oct 2025 16:56:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760115371; cv=none; b=qWt1WyYHIsW1/jbk/0IvcRXAHzbJ2MfBF/UNBxGOFQAw7jbf9qA5CuVv7I+Ws4gv2aScUCclYPwFQ2RLexsoB1WMlOd625XR3SKGoVlOXkYAn9DTaoXX2aB4H9vqlTBhtYPC2ieOEGLkzeccdSuM70wzwowY3nHpR3d6A7SM6xA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760115371; c=relaxed/simple; bh=RofIudv5YXMEEthWbgRH6JEHQjcGmNomXmHjIUiRjlY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uellwuDjY9gf0rLbZGTMvyYJMSDrzhIrM8961fP5WBygCVBnQLp39Esm+uCK2YDuVGj2HsIAhzRtLG0ylvqSH4sHbd7mpyV4P2EHTVMLNXuoniY7u+7xHaC3AFd5stP/2ViCOxf3fQoHGGfkB2i4gnu+CZY3jB1/k8Tpmxk6Gx8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 373D0153B; Fri, 10 Oct 2025 09:56:01 -0700 (PDT) Received: from [10.1.197.69] (eglon.cambridge.arm.com [10.1.197.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 10FE13F66E; Fri, 10 Oct 2025 09:56:02 -0700 (PDT) Message-ID: Date: Fri, 10 Oct 2025 17:55:59 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 05/29] arm64: kconfig: Add Kconfig entry for MPAM To: Gavin Shan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org Cc: 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 , 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 , Catalin Marinas , Will Deacon , Greg Kroah-Hartman , Danilo Krummrich References: <20250910204309.20751-1-james.morse@arm.com> <20250910204309.20751-6-james.morse@arm.com> Content-Language: en-GB From: James Morse In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Gavin, On 03/10/2025 01:32, Gavin Shan wrote: > On 9/11/25 6:42 AM, James Morse wrote: >> The bulk of the MPAM driver lives outside the arch code because it >> largely manages MMIO devices that generate interrupts. The driver >> needs a Kconfig symbol to enable it. As MPAM is only found on arm64 >> platforms, the arm64 tree is the most natural home for the Kconfig >> option. >> >> This Kconfig option will later be used by the arch code to enable >> or disable the MPAM context-switch code, and to register properties >> of CPUs with the MPAM driver. > Reviewed-by: Gavin Shan Thanks! James