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[67.168.198.145]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ae8441a5ecsm10839408a91.2.2026.11.01.09.46.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Nov 2026 09:46:59 -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 4/4] drm/msm: Inhibit IFPC for state snapshot Date: Sun, 1 Nov 2026 09:46:28 -0800 Message-ID: <20261101174631.23637-5-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261101174631.23637-1-robin.clark@oss.qualcomm.com> References: <20261101174631.23637-1-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-Spam-Details-Enc: AW1haW4tMjYxMTAxMDA3MCBTYWx0ZWRfX8ItMuMH4ipRj 0C1ffJMQSAWTMdNKGC5DcjfCoY4LeNYKODqdBSxMQfJhOiGSAAEOT2u0yMGGT6B79TkmJnQqUds 2Gjs5BPgVSk1MGH3dQVti33szfwP5NUfZw7Q04jItjeSwQ7yua+Ll6xcDVjj8OpFMO50Awlcrq2 6fEuOfFODs8TMWiQEiHlvhtwmnuJ+lrNTdzqFxuS8yOXPAWbXck2tZJ/Nzre9bCJOlc/Tx8OWQf z2piigyjjo1U+QBm5lazZ/k8AgTdZTnudO0SoM//zq/okxivaPnt6EYQAy/KxljsYkrTWGlvySE kTGeWh2VD2+NQQVNaTwVKtBbCmrRaHL1ljA7dBMnXL7GqXh5C/6W3kAt8v1yER2QBQWT/UZjah8 OYSbfWn4ScTxxiqDdLuQiBmziMZNSN8QJx6hJEcCguJB3V5FoU/yHAQZFm2eAj6ea+a+C+ksD5w 4IEq1TSPh5vqXCkcPOQ== X-Authority-Analysis: v=2.4 cv=FciiV5+6 c=1 sm=1 tr=0 ts=6ae77b15 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=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=jgQnFmZX3A3noQDnNKkA:9 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-ORIG-GUID: mJTZ5wkjkJM9bGuKXiLUXgInyh2bqj_X X-Proofpoint-GUID: mJTZ5wkjkJM9bGuKXiLUXgInyh2bqj_X X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAxMDA3MCBTYWx0ZWRfX8o1u55cpadQl Y9dav8aWHLU6yrU4e3hHdu8Uj4NTcjrCD9GUOrNhSMORZVpOuL8TXUWM/jDYFz9ic+EW0/tCc/d BqEkKJeLSxujCOsbJCQW0TYav54n+Lg= 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=2026-11-01_06,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 impostorscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 adultscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611010070 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 b0ddc02f67b5..224401b4ab12 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 PTR_ERR(scope.lock), &gpu->lock) { msm_gpu_hw_init(gpu); show_priv->state = gpu->funcs->gpu_state_get(gpu); -- 2.56.0