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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3990d75b540sm4550049a91.10.2026.09.01.01.01.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 01 Sep 2026 01:01:15 -0700 (PDT) Message-ID: <4db03770-b410-4298-9e32-d497278e9cfa@oss.qualcomm.com> Date: Tue, 1 Sep 2026 16:01:11 +0800 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V2 0/5] cpufreq: loongson3: Fix wrong behaviors on multi-node servers To: Huacai Chen , "Rafael J . Wysocki" , Viresh Kumar , Huacai Chen Cc: loongarch@lists.linux.dev, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Xuerui Wang , Jiaxun Yang , Hongliang Wang , zhongqiu.han@oss.qualcomm.com References: <20260828031201.1500767-1-chenhuacai@loongson.cn> Content-Language: en-US From: Zhongqiu Han In-Reply-To: <20260828031201.1500767-1-chenhuacai@loongson.cn> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=OcyoyBTY c=1 sm=1 tr=0 ts=6a96864f cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=mbPrJoAuDWtQQzFn8WUA:9 a=QEXdDO2ut3YA:10 a=iS9zxrgQBfv6-_F4QbHw:22 X-Proofpoint-ORIG-GUID: LfURc4Y1W5aBRW8rUJN7IkPxS2SuWtkd X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAxMDA3MCBTYWx0ZWRfX4+IzIOdnuiEx EUV44wBib5+SGHfTEeb9NygctXu0W1QbD676RSAYxcl24a02ub8J3FpFBeegtiZS5NZbWroh7b6 eW7rJF6ioTvPAAyOQVZ0FerZrCK372U= X-Proofpoint-GUID: LfURc4Y1W5aBRW8rUJN7IkPxS2SuWtkd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAxMDA3MCBTYWx0ZWRfXxuYMzC3tDvHh d7iCI1flb5Rh7FY8php5Is4XuC3vU1FhuBnBxjkNn/ma+mUOw+kvdobRDmnXt7YAQuQBiP8s1uD /94T7BuqT8+37ecm/7lkSRgcrQPoBhj5xe2PoZwt2kePCcL4mIW/epufcWceFCy7ivqifotXtC7 cE9EpLydVoM2uEuH7+syyBffIrz0F89WK8y7bPiuexWAjv/YV9DZAeG5ztFpCszSkpEGc1DUdDY DuvZAhITg1O6Z0PBjze6V/KHbD05dJpCcc8FB2JG3AdqVnMZMAQ/zmZalVAG947sN0wfXbWMetH dhn/JX8Hp5FuKWXbEG9cdPosmoBkGCVcnkbRXzvFt37dIV9iK8B7tCRk9Mv8cpjR9pzjkmv0zsM Mv9txXJZ1RVS53U3ElHAxkrMQkaIgpTECfp226nDPUcbi+MVPm5hwnCpoMQCMdwk1lvnyIrhCHU XoV7BD6gJKIL30M618Q== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-01_02,2026-08-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 malwarescore=0 spamscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609010070 On 8/28/2026 11:11 AM, Huacai Chen wrote: > Our server productions (e.g. Loongson-3D6000/3E6000) can have multiple > nodes in one package and SMC mailboxes are also per-node. However, the > current driver has wrong behaviors on multi-node servers, including: id > field in smc_message is too narrow, mutex is not per-node, IOCSR read/ > write can only perform on the current node, etc. This series fix all the > above problems. > > V1 -> V2: > 1. Fix typos and add Fixes tags. > 2. Fix loongson3_cpufreq_get() return values. > 3. Use nid_to_addrbase() rather than hard code. > 4. Guard some code with CONFIG_SMP to avoid build errors. > > Hongliang Wang & Huacai Chen (5): > cpufreq: loongson3: Make this drvier depend on MACH_LOONGSON64 > cpufreq: loongson3: Adjust the width of id and val in smc_message > cpufreq: loongson3: Replace per-package mutex with per-node > cpufreq: loongson3: Use global physical CPU ID in get/target callbacks > cpufreq: loongson3: Replace IOCSR read/write with MMIO ones > > Signed-off-by: Hongliang Wang > Signed-off-by: Huacai Chen > --- > drivers/cpufreq/Kconfig | 1 + > drivers/cpufreq/loongson3_cpufreq.c | 72 ++++++++++++++++++++++++------------- > 2 files changed, 48 insertions(+), 25 deletions(-) The whole series looks good to me. Reviewed-by: Zhongqiu Han > --- > 2.27.0 > > -- Thx and BRs, Zhongqiu Han