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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9c0219ed95sm137701066b.29.2026.04.01.04.40.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Apr 2026 04:40:59 -0700 (PDT) Message-ID: <7b271810-c1ab-4d07-8364-e4c30588722d@oss.qualcomm.com> Date: Wed, 1 Apr 2026 13:40:56 +0200 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: qcom: kodiak: increase fastrpc compute-cb session slots To: Dmitry Baryshkov , Jianping Li Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ekansh.gupta@oss.qualcomm.com References: <20260401073345.478-1-jianping.li@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: pEjXw1Ygrv7to7qP2PIz9Ti1cmjHTPoE X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAxMDEwNyBTYWx0ZWRfX/vaS/MjNvleL IPaMUaL5U/RhnTOyx8tlsnb5Go1pSDdNLjLW92QXQ9W9T1r28ubpRuMRTNGWH2qzMRLyTDQb476 I92c27UR1h+csg7A12kzUcyFTZoSWVMHUZAQ0IiHVmiuOoeAoMI2E+qHUhxmc2bAxnMiW+s8dKM Rmz1mFNyoZcRNzWa9oNqWNw4v7B7b11n38QP8cNvtO81x35JKs3fuTH+iCxEDMmkCHDksteXXSz BRSJn2RS0aR+Jdk5SaeyXNoblogGcstcERw9Du9B68ZI0uXDG+1TYPQQmnrQf+bqExgLbKWRc2Q cuX1OQt2ImH3aI1kFhXbmTFt74+oSjgQ9xCLrYQ9ud6kRQCa+bGpWfJ/EKeUlubgsHrwIJy0u6g Op0M8aVwZ0KHd6aXotQqI2I3bbcv1Oaudkp8fbE9wiYpLpEQNu8EUv39qWIo3qBMWDdyi9Jxuat CV+6X25IOeayPJvjFcQ== X-Proofpoint-ORIG-GUID: pEjXw1Ygrv7to7qP2PIz9Ti1cmjHTPoE X-Authority-Analysis: v=2.4 cv=PoGergM3 c=1 sm=1 tr=0 ts=69cd044d cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=ZEI62NPqEYiQVTBb8BAA:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-01_03,2026-04-01_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 malwarescore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010107 On 4/1/26 1:33 PM, Dmitry Baryshkov wrote: > On Wed, Apr 01, 2026 at 03:33:45PM +0800, Jianping Li wrote: >> Some workloads on Kodiak can exhaust FastRPC sessions when multiple >> compute clients open contexts concurrently, leading to -EBUSY failures. >> >> Describe the compute context bank with qcom,nsessions = <5> so the >> driver can provision enough session slots for the compute-cb instance. > > This is a software property, so it probably should not have been added > to the DT in the first place. Can we replace it with the driver code, > allocating more sessions to the last CB? Nov 2025 => https://lore.kernel.org/linux-arm-msm/53644b36-2eff-4b1c-9886-591afee8b589@oss.qualcomm.com/ Konrad