From mboxrd@z Thu Jan 1 00:00:00 1970 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 08BC6CCD185 for ; Fri, 10 Oct 2025 16:56:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=RofIudv5YXMEEthWbgRH6JEHQjcGmNomXmHjIUiRjlY=; b=YSAsTjZXDIMaWNASCUJ7tS3HRe Wbcfd79oQ9U/Zp4c/iKqlDnqwEHtloL7jw6MQwCiadgaBOK9lOSRZhuukCyUjqBeUwmYKCorEXz/A ZO/IctqngeD7xMs22h6U/4qmbhj+I8a5DHOL4t0tgQddpBl07a8H3qT8wnxe1kZsq6i7eKr5TGC0U X1nNysr5qgI2NzmJ5arwLGHz5y5HryfRjUncBmCJospWkUoaTp5kN2RN4FICzyXG02lgaHUSYZHyk ZRdbiJ+yGPi+rPWcQLE1bRWw5JFp4a+d5Cz7xCfAr4tBHNWCNdNgfqv+ydOQ60bJyLFyRbuhHWyrE fPrrFlPw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7GPe-000000091Ex-2R0o; Fri, 10 Oct 2025 16:56:14 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7GPc-000000091DU-3zrZ for linux-arm-kernel@bombadil.infradead.org; Fri, 10 Oct 2025 16:56:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:Content-Type :In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date:Message-ID: Sender:Reply-To:Content-ID:Content-Description; bh=RofIudv5YXMEEthWbgRH6JEHQjcGmNomXmHjIUiRjlY=; b=Ydat7GGOW1OISNwq+fl8ZtIO3h FeYtz2gaOUsxYInvmB+ssVnNOmm2Ean0QNAA7FCmezjWMN6U6apFQ63vLNuMey/d75J8xpG3YjAeO gtPPlfyUPyzKqw0JfvCcwPGVrRlnOT4fi9YyP/rupxTjyqfgZJz3XhomkoFNvbiOrnNYkhksB3Mt9 GtKEXKQQvuyZlcWziuQizzDlVmBWa7OmSjBidx4zwQU5thMpv/HQWMwOw+23+YW2/V586OoD65tPB OU72hZBsHCzuDvWmA0WqhhDYgtXU5Stike+96NNOPpzrcl+JS2k4QyGu4lSRjLzjnqMKkmvLPJSG6 aU9FQZEA==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v7GPZ-00000002JQ6-43ii for linux-arm-kernel@lists.infradead.org; Fri, 10 Oct 2025 16:56:11 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251010_175610_349793_7B9E4883 X-CRM114-Status: GOOD ( 10.95 ) 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 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