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[67.168.198.145]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b07c62984bsm444552a91.9.2026.11.02.11.00.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2026 11:00:21 -0800 (PST) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Anna Maniscalco , Rob Clark , Alexander Koskovich , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 4/4] drm/msm: Inhibit IFPC for state snapshot Date: Mon, 2 Nov 2026 11:00:07 -0800 Message-ID: <20261102190010.720443-5-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261102190010.720443-1-robin.clark@oss.qualcomm.com> References: <20261102190010.720443-1-robin.clark@oss.qualcomm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: u0QOlRfxNRwZU3PMS8Ch4DFP0XbUhL7A X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAyMDA3NSBTYWx0ZWRfX3V3x1n8DFT4f 66Scbw8rbAxeGHWlmMfpOylvgLSp+LB9f+HC7LRPy0/rXvew5RdcjrSxZlQ/Qwp8Go4mN+rZivW acVlip7ahz8AtcZgta1rP5skNb9xzYji4W+4vr5sOzXaBumrs7htVqY1V08xCcqLeZG8AFsW9QE KZxBxMQ2E8r8pwOpSInXpPxFTf705cBl/3ETAc+Pe4bjK17YAup72x5egEspaPfz1Oh13A6d1jA 27bxr6FW22ap3IhKVISnndOLKTd5eX4NY9ZVlZ+IAHROod0AZECoLQ4ZhSoIc2H0VlFnBILLLmt LnXWFUIRQaaG3TRLSPtAuWxQumY5fQcF+Io0PCzvUlSJ2gXy6bG9aiIkYnm95kxzZFzPiPyQWMy LFdEGWM0ZHfx5OHFRgIkkXfsndSvW2FDw/bYgklEa+WIQkSbIK0dIHpuytEMCGyziOne4jkau97 CFkD2N9XC66M+OcpCPg== X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAyMDA3NSBTYWx0ZWRfX9v9UVBJovMJW 4t5WLJeXTvIo1z7EjfceVsLYrDfhSHUMuX3KrjUOjeyjuhvdJ29uAqewEFOR79qEgWBKEGjEjYc ZDT3gHteDWaydObc+oXs7XOQl+IV5P8= X-Proofpoint-GUID: u0QOlRfxNRwZU3PMS8Ch4DFP0XbUhL7A X-Authority-Analysis: v=2.4 cv=NZlzRGD4 c=1 sm=1 tr=0 ts=6ae8ddc7 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=6Rn/7xRx7Ub4NEhlm8k1cw==:17 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=jgQnFmZX3A3noQDnNKkA:9 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-02_05,2026-11-02_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 phishscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611020075 We need the GPU to stay awake for this. Tested-by: Alexander Koskovich # Milos (Nothing Phone 3a) Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_debugfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c index aa59b28a3392..29209c23fcfa 100644 --- a/drivers/gpu/drm/msm/msm_debugfs.c +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -81,6 +81,8 @@ static int msm_gpu_open(struct inode *inode, struct file *file) return -ENOMEM; scoped_guard (pm_runtime_active, &gpu->pdev->dev) { + guard(ifpc_disable)(gpu); + scoped_cond_guard (mutex_intr, return -EINTR, &gpu->lock) { msm_gpu_hw_init(gpu); show_priv->state = gpu->funcs->gpu_state_get(gpu); -- 2.56.0