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[175.34.62.5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-78b02074654sm3236692b3a.75.2025.10.02.17.32.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 02 Oct 2025 17:32:16 -0700 (PDT) Message-ID: Date: Fri, 3 Oct 2025 10:32:04 +1000 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: James Morse , 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-US From: Gavin Shan In-Reply-To: <20250910204309.20751-6-james.morse@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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. > > Signed-off-by: James Morse > Reviewed-by: Jonathan Cameron > CC: Dave Martin > --- > Changes since v1: > * Help text rewritten by Dave. > --- > arch/arm64/Kconfig | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > Reviewed-by: Gavin Shan