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[73.37.105.206]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cbdba35196esm1174015a12.17.2026.07.29.08.56.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jul 2026 08:56:50 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Rob Clark , Abel Vesa , Abhinav Kumar , Akhil P Oommen , "Chia-Lin Kao (AceLan)" , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Dmitry Baryshkov , Greg Kroah-Hartman , Heikki Krogerus , Hsin-Te Yuan , Jessica Zhang , Johan Hovold , Konrad Dybcio , linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b), linux-kernel@vger.kernel.org (open list), linux-media@vger.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK:Keyword:\bdma_(?:buf|fence|resv)\b), linux-usb@vger.kernel.org (open list:USB TYPEC CLASS), Luca Ceresoli , Marijn Suijten , Pooja Katiyar , Sean Paul , Simona Vetter , Sumit Semwal Subject: [PATCH v7 00/17] drm/msm: A couple lazy-vm fixes Date: Wed, 29 Jul 2026 08:55:37 -0700 Message-ID: <20260729155609.20190-1-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI5MDEyNyBTYWx0ZWRfXz5yYvNofTpnx j3X+xUvsQ3Mq8kjzXr3i5plkB3LLBtn+/R+H5pgtqz0L+nbFhkSP957ERr4P+kFiRlRTHmkMH/r fzpIQ+MDkqDVxYhDcQ7dQzCO+fJKjnw= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI5MDEyNyBTYWx0ZWRfX9rnFKc2SrG3N adh5bmnq7fJdQzvLKnJRrwr0IOt0GTmw6mnEszRHN7pAfdZmUqJSxGF4CT/r3+L5DvGlfDEI4zr tfd6FrkIYdYhRRWn+YVrzSQeB7MdDQtDz5af9g9DuEMppAFmODjtXwqV8GyVrf7R30hO3MRvH14 Magwk33iQIB7Wq3AgaRS5FPgD91jYXGR5pn4zUx1xC8WGbMpqed8jxvd8yfzFmdGf4VY8OwsZ2C C3gzd0bxNqV5hIodbNl281F+5pzSRqRE76qjOVeW5F3C++8foPLPl0g6xzRaiMV4ZFUoRq0uHCM VfcoTtko5b6vipQ5EBKyn+gPzLyDSQuKxRZfY5Q5Dt1xNjcS3/jOmE0Vc3rs7+nGg59iXLEBi+G 7cH0QxjEOj7vPrGY7ANOwIcHcrcsJYR89xZlPxBzNiu6EycvcBY9WRnu3jsc3mxA7fcaHsjJTqZ PjU5hg/ms9JAu8vYtrA== X-Authority-Analysis: v=2.4 cv=LtKiDHdc c=1 sm=1 tr=0 ts=6a6a22c3 cx=c_pps a=rz3CxIlbcmazkYymdCej/Q==:117 a=19Wyn7e3V/0aNffMjNCMQw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=bzYy7Z1X7KArDtV8Qg8A:9 a=bFCP_H2QrGi7Okbo017w:22 X-Proofpoint-GUID: n8pTKDmlO5P5jxpDI6uD6xtAM20v-AnP X-Proofpoint-ORIG-GUID: n8pTKDmlO5P5jxpDI6uD6xtAM20v-AnP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-29_06,2026-07-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1011 adultscore=0 priorityscore=1501 phishscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607290127 The VM is created lazily to give userspace a chance to opt-in to VM_BIND. But Sashiko noticed a couple paths that were not handling this properly. Or at least that is how this series started out. Rob Clark (17): drm/msm: Fix barriers accessing ctx vm drm/msm: Rework queuelock drm/msm: Synchronize VM creation on ctxlock drm/msm: Synchronize set_sysprof on ctxlock drm/msm: Move nr_cmds initialization drm/msm: Remove redundant SIZE_MAX check drm/msm/a6xx: Access VM directly in submit path drm/msm: Add helper to check for per-process pgtables VM drm/msm/gem: Fix dma_buf import error paths drm/msm/gem: Remove useless locking in GEM import drm/msm/gem: Extract bookkeeping init helper drm/msm/gem: Set resv before exposing obj drm/msm/gem: Validate lazy VM in GEM_NEW drm/msm: Allow lazy VM creation to fail drm/msm: Don't fallback to shared VM for VM_BIND drm/msm: Fix per-process-pgtables check drm/msm: Fixup invalid overflow check drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 17 ++++- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 2 +- drivers/gpu/drm/msm/msm_drv.c | 26 ++++--- drivers/gpu/drm/msm/msm_fb.c | 4 +- drivers/gpu/drm/msm/msm_gem.c | 94 ++++++++++++++---------- drivers/gpu/drm/msm/msm_gem.h | 5 +- drivers/gpu/drm/msm/msm_gem_prime.c | 2 +- drivers/gpu/drm/msm/msm_gem_submit.c | 31 ++++---- drivers/gpu/drm/msm/msm_gem_vma.c | 12 ++- drivers/gpu/drm/msm/msm_gpu.c | 2 +- drivers/gpu/drm/msm/msm_gpu.h | 4 +- drivers/gpu/drm/msm/msm_submitqueue.c | 24 +++--- 14 files changed, 131 insertions(+), 96 deletions(-) -- 2.55.0