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[67.168.198.145]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ada48a55d5sm981845a91.9.2026.10.21.13.52.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Oct 2026 13:52:32 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Alexander Koskovich , Jie Zhang , Akhil P Oommen , Bhaskar Reddy Valluru , Rob Clark , Abhinav Kumar , David Airlie , Dmitry Baryshkov , Jessica Zhang , Konrad Dybcio , linux-kernel@vger.kernel.org (open list), Marijn Suijten , Sean Paul , Simona Vetter Subject: [PATCH v2 00/14] drm/msm/a8xx: GPU state capture support Date: Wed, 21 Oct 2026 13:41:25 -0700 Message-ID: <20261021204244.67160-1-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=NrRE4MdJ c=1 sm=1 tr=0 ts=6ad92612 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=6Rn/7xRx7Ub4NEhlm8k1cw==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=e5mUnYsNAAAA:8 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=5uKouOo8jYOmxnCoqBwA:9 a=rl5im9kqc5Lf4LNbBjHf:22 a=Vxmtnl_E_bksehYqCbjh:22 X-Proofpoint-ORIG-GUID: mmc1DHWIBJ8f8ysVGDUymptLpqN0Dlm0 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDA4MyBTYWx0ZWRfX+N7fTGGEtlUq d4FdX4qY1y8KSA51bXiQwL9WA6Q5IuBqGB+yoxYhW7cZ9wy6GVE9bkdvP03+yTkPUbJPeQaaxof q1rJGX8ubR6D5B9NrOd+S+fUcAvYiNI= X-Proofpoint-GUID: mmc1DHWIBJ8f8ysVGDUymptLpqN0Dlm0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDA4MyBTYWx0ZWRfXyi/Cn4WoOxS3 7mbi7/k9DriCGxNk46tjnZHydTnjvxxcAacLHz5C/H9GSLJmluA7+IPy1EDA/BM6NroIsv0vsdp 4gZHDhRYF0p/lVbuhJa7tjwuDkFvBYx34ihZGyxRLpu3N+EzXNihKNpNk0tDp99bKpZAvE7outp ImqAXXinHinm/Hmm5wQxt1pI8VdW+ULKJomIPFdzmYLluYi27+CLLeE/W0lA+cYtWMEkFdnjWlu KB091xsqCZCbJxBhm4iQGScQzsn+zd3e5ojzrGw4brR+491xsB/BZxQcIVYdllyO/CuZhuIcsi/ BsnE3iD9W1rSppJphoyW3X0+Gty1x80QnoviAxQAuT7bgN0nrc1ybiJBEDFviUfqU+qNrDg76gO uxqaCSA6VQu9xceWwqS5q7RIjuT6CP5ac6oKU3Gi4YLE+53wG0HuQqZii3Wl8HHh8F1TFps+5bA dVbrXk6j9BeFysi3Raw== 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=2026-10-21_06,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 spamscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210083 This series introduces gen8 devcoredump support. Compared to previous gens, it: 1. Switches to generated tables. Compared to hand modifying headers from kgsl (which were originally generated, then adjusted a bit by hand before adding to kgsl tree. And then copied to drm/msm and lightly modified some more in the process). In the process, we also switch to generated nonctx reg tables and cp_protect tables. 2. Aligns to the "snapshot" format that kgsl/etc use for hw state capture. The non-generation specific bits (SMMU fault info, capturing relevant BOs, etc) still works as before. Everything gen8 specific gets encoded as "snapshot" sections, ascii85 encoded in the resulting devcoredump file (similar to captured BOs). 3. Try to make it easier to at least compare kgsl snapshot code with upstream, for porting fixes/etc. State capture is tedious and mind- numbing, and the last thing you want to do when debugging a GPU hang is going down the rabbit hole of having to first debug gpu state capture. However, I don't love kgsl_snapshot_add_section(). It does avoid duplicating snapshot header stuff everywhere. But the ergonomics are not great. So instead I went with "align with what I wish kgsl looked like.. The mesa/crashdec side of this is at: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/45304 I'd appreciate tested-by's on Hawi, Maili, Milos, and Pakala, since I don't have these devices at-hand to test myself. In particular, do things look fine after the switch to generated nonctx regs. To test devcoredump, you can use the msm_recovery test in igt.. or just: cat /sys/kernel/debug/dri/*/gpu > /dev/null NOTE: Uses $codename for generated file/table names, rather than continue to perpetuate the equally meaningless gen8_x_y naming from kgsl into upstream. At least the codenames are familiar upstream and this removes an extra level of name translation. v2: - Fix incorrect protect list for Kaanapali - Use __free() for snapshot_sect finalization - Fix missing early return error path in gen8_snapshot_mempool() - Fix aperture setting in gen8_legacy_snapshot_mvc() - Fix first_slice in gen8_snapshot_mempool() - Remove GBIF regs in generated nonctx list - Link to v1: https://lore.kernel.org/all/20261020204728.28844-1-robin.clark@oss.qualcomm.com/ Rob Clark (14): drm/msm: Import adreno_snapshot.h drm/msm/a8xx: Export aperture helpers drm/msm/a8xx: Add a8xx_aperture_acquire_raw() drm/msm/a8xx: Export slice helper drm/msm/a8xx: Add missing a850 ifpc reglist entries drm/msm/a8xx: Allow nonctx reglist to include GMU regs drm/msm/a8xx: Stop getting GMEM_PROTECT from nonctx list drm/msm/adreno: Fix PROTECT span length drm/msm/adreno: add temporary __maybe_unused drm/msm/a8xx: Import generated headers drm/msm/a8xx: devcoredump state capture support drm/msm/a8xx: Switch to generated nonctx regs drm/msm/a8xx: Switch to generated protect regs drm/msm/adreno: Remove temporary __maybe_unused drivers/gpu/drm/msm/Makefile | 4 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 7 + drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 14 +- drivers/gpu/drm/msm/adreno/a8xx_catalog.c | 675 +---- drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 46 +- drivers/gpu/drm/msm/adreno/a8xx_gpu_state.c | 1278 +++++++++ .../gpu/drm/msm/adreno/adreno_gen8_snapshot.h | 582 ++++ drivers/gpu/drm/msm/adreno/adreno_gpu.h | 2 + drivers/gpu/drm/msm/adreno/adreno_snapshot.h | 527 ++++ .../drm/msm/adreno/catalog/adreno_glymur.h | 2308 ++++++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_hawi.h | 2403 +++++++++++++++++ .../drm/msm/adreno/catalog/adreno_kaanapali.h | 2332 ++++++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_maili.h | 1893 +++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_milos.h | 1987 ++++++++++++++ .../drm/msm/adreno/catalog/adreno_pakala.h | 2171 +++++++++++++++ 15 files changed, 15572 insertions(+), 657 deletions(-) create mode 100644 drivers/gpu/drm/msm/adreno/a8xx_gpu_state.c create mode 100644 drivers/gpu/drm/msm/adreno/adreno_gen8_snapshot.h create mode 100644 drivers/gpu/drm/msm/adreno/adreno_snapshot.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_glymur.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_hawi.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_kaanapali.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_maili.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_milos.h create mode 100644 drivers/gpu/drm/msm/adreno/catalog/adreno_pakala.h -- 2.56.0