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Thu, 10 Oct 2024 09:36:28 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6cbe85d8b48sm6712126d6.68.2024.10.10.09.36.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 10 Oct 2024 09:36:27 -0700 (PDT) Message-ID: <31d945d4-0dfa-4494-8377-0cb1be91e41b@broadcom.com> Date: Thu, 10 Oct 2024 09:36:24 -0700 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] arm64: dts: broadcom: Fix L2 linesize for Raspberry Pi 5 To: Conor Dooley , Willow Cunningham Cc: willow.e.cunningham@maine.edu, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Stefan Wahren , Andrea della Porta , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20241010150409.262087-1-willow.e.cunningham@maine.edu> <20241010-acutely-majesty-c044c7ce6f0a@spud> Content-Language: en-US From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/10/24 09:30, Conor Dooley wrote: > On Thu, Oct 10, 2024 at 11:04:07AM -0400, Willow Cunningham wrote: >> From: Willow Cunningham >> >> Fixes: faa3381267d0 ("arm64: dts: broadcom: Add minimal support for >> Raspberry Pi 5") > > This btw Willow, is meant to be... > >> >> Set the cache-line-size parameter of the L2 cache for each core to the >> correct value of 64 bytes. >> >> Previously, the L2 cache line size was incorrectly set to 128 bytes >> for the Broadcom BCM2712. This causes validation tests for the >> Performance Application Programming Interface (PAPI) tool to fail as >> they depend on sysfs accurately reporting cache line sizes. >> >> The correct value of 64 bytes is stated in the official documentation of >> the ARM Cortex A-72, which is linked in the comments of >> arm64/boot/dts/broadcom/bcm2712.dtsi as the source for cache-line-size. >> > >> Signed-off-by: Willow Cunningham > > Down here, on the line before your signoff. Perhaps Florian is willing > to fix that for you though. Yeah, I will fix it up while applying. -- Florian