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[83.11.185.71]) by smtp.gmail.com with ESMTPSA id p9-20020a170907910900b00a26ac5e3683sm7549570ejq.100.2023.12.29.04.01.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 29 Dec 2023 04:01:54 -0800 (PST) Message-ID: Date: Fri, 29 Dec 2023 13:01:53 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] ARM Sbsa-ref: Enable CPU cluster topology Content-Language: pl-PL, en-GB, en-HK To: Xiong Yining , rad@semihalf.com, peter.maydell@linaro.org, quic_llindhol@quicinc.com Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, chenbaozi@phytium.com.cn References: <20231227120722.1683361-1-xiongyining1480@phytium.com.cn> From: Marcin Juszkiewicz Organization: Linaro In-Reply-To: <20231227120722.1683361-1-xiongyining1480@phytium.com.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::532; envelope-from=marcin.juszkiewicz@linaro.org; helo=mail-ed1-x532.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org W dniu 27.12.2023 o 13:07, Xiong Yining pisze: > Enable CPU cluster support on SbsaQemu platform, so that users can > specify a 4-level CPU hierarchy sockets/clusters/cores/threads. And this > topology can be passed to the firmware through DT cpu-map. > > xiongyining1480 (2): > hw/arm/sbsa-ref:Enable CPU cluster on ARM sbsa machine > hw/arm/sbsa-ref: Add cpu-map to device tree > > hw/arm/sbsa-ref.c | 36 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > Tested-by: Marcin Juszkiewicz Booted system with "-smp 8,sockets=2,clusters=2,cores=1,threads=2" and got what I wanted: cpus { #size-cells = <0x00>; #address-cells = <0x02>; cpu-map { socket0 { cluster0 { core0 { thread0 { cpu = <0x8007>; }; thread1 { cpu = <0x8006>; }; }; }; cluster1 { core0 { thread0 { cpu = <0x8005>; }; thread1 { cpu = <0x8004>; }; }; }; }; socket1 { cluster0 { core0 { thread0 { cpu = <0x8003>; }; thread1 { cpu = <0x8002>; }; }; }; cluster1 { core0 { thread0 { cpu = <0x8001>; }; thread1 { cpu = <0x8000>; }; }; }; }; }; cpu@0 { phandle = <0x8007>; reg = <0x00 0x00>; }; cpu@1 { phandle = <0x8006>; reg = <0x00 0x01>; }; cpu@2 { phandle = <0x8005>; reg = <0x00 0x02>; }; cpu@3 { phandle = <0x8004>; reg = <0x00 0x03>; }; cpu@4 { phandle = <0x8003>; reg = <0x00 0x04>; }; cpu@5 { phandle = <0x8002>; reg = <0x00 0x05>; }; cpu@6 { phandle = <0x8001>; reg = <0x00 0x06>; }; cpu@7 { phandle = <0x8000>; reg = <0x00 0x07>; }; };