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[67.168.198.145]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8b09b667995sm142420b3a.40.2026.11.03.15.18.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 15:18:54 -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 , Abhinav Kumar , Akhil P Oommen , David Airlie , Dmitry Baryshkov , Jessica Zhang , Konrad Dybcio , linux-kernel@vger.kernel.org (open list), Marijn Suijten , Sean Paul , Simona Vetter Subject: [PATCH v4 0/6] drm/msm: Decouple IFPC disable and sysprof Date: Tue, 3 Nov 2026 15:18:39 -0800 Message-ID: <20261103231850.17493-1-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.56.0 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-Authority-Analysis: v=2.4 cv=bp/Zl0ai c=1 sm=1 tr=0 ts=6aea6be0 cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=6Rn/7xRx7Ub4NEhlm8k1cw==:17 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=e5mUnYsNAAAA:8 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=pAKKPEBcNh-_eZAUbWwA:9 a=OpyuDcXvxspvyRM73sMx:22 a=Vxmtnl_E_bksehYqCbjh:22 X-Proofpoint-GUID: mW8CE-4HeoSJG09X_bFKN0geWWIGfVSk X-Proofpoint-ORIG-GUID: mW8CE-4HeoSJG09X_bFKN0geWWIGfVSk X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAzMDA5MiBTYWx0ZWRfX+jScJlZKRzqD QMWlLExe40X/RHNNDFI6FYNbnNEXhm49aRk551XI6QlhUXAXvC7sz2l8SZuUUBGceQdz+kbeTea 9Y5xJCtblNGuYbY9mMqQSZJ1VheaTgY= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAzMDA5MiBTYWx0ZWRfX3y1n9hdVoqAx LsG38pCE4O2iN1gGTQ7atIPNlNUQS+xRO+PD6ApsM6G5151wanAFtBJqMhfMA+wadEZOMpiwvG5 tK4KhWNUbTLknYTLoupGI0BmlqWgPyaaZXg47+QyDMeekSDMAy3iKfLMXf02l7K5F18WpG+o80h gz/XIrjXMY7KvsCIOicamMKB+KBpSiP+SnIKXmTryEQ7mQGDLvcyWHbcKEj5Kbi4u0uaJj1yy6E kIcdHaj/1Iwpi/5+w6OdFoBnm1fJutBOpp6SPaKT3lneMjhftaJnKFBD51UtbzEW2gjQtyEzwI9 qkB77SwU4pWIShzL6Es7WuJALcw817R1rGbjfT3n/937pqY4zNrbIbLtJJsEhvko723zJoQl1hN vcSl8JP/bXHkxkcmPtTbbJ0hCK5eK9SaxaoKC27WR0BGZ1bnPnoUOR6Na33LoxLL6l40HwL5yZ1 aHMANubF0w5agFRNixw== 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=2026-11-03_05,2026-11-03_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 malwarescore=0 adultscore=0 spamscore=0 suspectscore=0 impostorscore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611030092 Convert IFPC-disable into it's own refcnt so that multiple threads can request IFPC to be disabled without stomping on each other. Extracted out of gen8 GPU state capture series[1], as other than fixing a missing IFPC disable in debugfs state capture path, it is unrelated. [1] https://patchwork.freedesktop.org/series/176505/ v4: - Don't clear GMU_STATUS_OOB_PERF_SET in suspend path. Restore it in hw_init() - Don't require gpu->lock in a6xx_gmu_ifpc_update(), but instead warn if needs_hw_init - Move perfcntr resume to after hw_init() - Link to v3: https://lore.kernel.org/all/20261103184713.29664-1-robin.clark@oss.qualcomm.com v3: - Rework IFPC disable harder to play nicer with hw_init(). If we need_hw_init, simply update gmu->status mask and let hw_init() restore the OOB request in a sequence that won't anger the fw. - Link to v2: https://lore.kernel.org/all/20261102190010.720443-1-robin.clark@oss.qualcomm.com/ v2: - Fix double acquire of gmu->lock - Fix missing a8xx hw_init() path - Link to v1: https://lore.kernel.org/all/20261101174631.23637-1-robin.clark@oss.qualcomm.com/ Rob Clark (6): drm/msm: Hold runpm ref in set_sysprof() drm/msm: Resume perfcntrs after hw_init drm/msm: Rework IFPC disable drm/msm: Add cleanup help for disabling IFPC drm/msm/debugfs: Use cleanup.h for gpu state dump drm/msm: Inhibit IFPC for state snapshot drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 28 ++++++++----------- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 11 ++++---- drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 2 +- drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 5 ++-- drivers/gpu/drm/msm/adreno/adreno_device.c | 5 +--- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 1 - drivers/gpu/drm/msm/msm_debugfs.c | 32 +++++++++------------- drivers/gpu/drm/msm/msm_gpu.c | 5 +++- drivers/gpu/drm/msm/msm_gpu.h | 30 +++++++++++++++++--- drivers/gpu/drm/msm/msm_perfcntr.c | 7 +---- drivers/gpu/drm/msm/msm_submitqueue.c | 19 +++++++++---- 11 files changed, 78 insertions(+), 67 deletions(-) -- 2.56.0