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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6887e224afdsm64600a12.9.2026.05.21.05.03.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 May 2026 05:03:36 -0700 (PDT) Message-ID: <8e465091-a50b-47be-a276-4436f8886fe0@oss.qualcomm.com> Date: Thu, 21 May 2026 14:03:34 +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 1/2] firmware: qcom: scm: add trace events for the SMC call interface To: Yuvaraj Ranganathan , Bjorn Andersson , Konrad Dybcio Cc: kernel@quicinc.com, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20260506-scm-tracepoints-v1-0-4bc983264014@oss.qualcomm.com> <20260506-scm-tracepoints-v1-1-4bc983264014@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260506-scm-tracepoints-v1-1-4bc983264014@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=c/ibhx9l c=1 sm=1 tr=0 ts=6a0ef49c cx=c_pps a=50t2pK5VMbmlHzFWWp8p/g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=8YGEyzvmoWhSzbtatFAA:9 a=QEXdDO2ut3YA:10 a=IoWCM6iH3mJn3m4BftBB:22 X-Proofpoint-GUID: W1EJg_PomM3_7LMpObtmyVRRH2INN3Xh X-Proofpoint-ORIG-GUID: W1EJg_PomM3_7LMpObtmyVRRH2INN3Xh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIxMDEyMCBTYWx0ZWRfXzJ1kPozG4D5k YrQHeCmbo1yHxKORA1UjPsR45qh06L2NSfj96YmYTmgLEPwnUPUQV2ay/IXQo1jgEVefQW+mTXI +V+6ruTuZVIwYTLkw8JhldLMzo1dCg5hpxJSD22ABm8A9//d/6EYjEvcIzCADQ0VVIysyKUoc2E WrJmzIizUGegZAjSMc2z75MJFofTQ/lpZt6Q5n7Ss/m10/orpKjDWjAWFephq2OPKrhikLvplot kQ9fVNuYwbggGDvHUoYqm87WLX7PN1f7aa0m+aQudQKb/aAnUQ4FDrQOO7tRwqjJsOPgXB1NcSb DeuiXWcIzB07sOk+J04TpzESNJyvJN4wIA2IFiJZ3vNgfkXrjGT7mKS2oi7EUB3vOzv7YdRZPs4 dOJuOAeUEr5x8hmwbVtsNWVk0nRjlwNsZoF7vqd60qG0ibXV/nVJWOML2FgdAqg0tthfKAVjR2D O084ly7rscFfuifSQWw== 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=2026-05-21_02,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 priorityscore=1501 phishscore=0 bulkscore=0 clxscore=1015 malwarescore=0 adultscore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605210120 On 5/6/26 12:37 PM, Yuvaraj Ranganathan wrote: > The SCM SMC call path is opaque at runtime. Stalls caused by firmware > congestion, QCOM_SCM_WAITQ_SLEEP/RESUME cycles, and EBUSY retry loops > are invisible without recompiling the kernel with temporary printk > statements or attaching a hardware debugger. [...] > + TP_fast_assign( > + __entry->wq_ctx = wq_ctx; > + __entry->smc_call_ctx = smc_ctx; nit: these tabs-before-assignments seem forced otherwise I think this looks good Reviewed-by: Konrad Dybcio Konrad