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[67.168.198.145]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ad83607790sm326982a91.1.2026.10.20.13.47.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2026 13:47:44 -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 00/12] drm/msm/a8xx: GPU state capture support Date: Tue, 20 Oct 2026 13:46:14 -0700 Message-ID: <20261020204728.28844-1-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-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIwMDA4MiBTYWx0ZWRfX/fiQG1HEaggi mW+gjaXvRpRl1PUiupY8p4vFYvRXX2RMPX9zRCD50ptrMC9R23rBpS8GTxNx8rrs8tQErJFpNAF qr3vFECo7V1Ui+uiAoCU/ppu96G1FyhCzcI20SoTGJVjwuqqAfrzle+/3eMDUYmfCu54ln5FRgo poWdpSBx6/3jwDFgZ8ODkdA7aFx6Jxb38FzNdXGXbeJh+i21L6te9T/L7JlGQzYGVQtLaGT8UzW o5mbwaCwEqjxp+4oyREKfs4Vd7hLGwGgAmz99GqzA8GrkB5axt1Il1zNVN+Lo6XGC443QuXtNvD bIFhVVTzFqGdx4iMx7lSbMXnwmsA1oq7i2azn2Qm11hZl0mgxQLr0xW+vIFQYyBwWlYjHsNJdRH s000ByCWogQ5sy+eodZ0Kw687A+XNgFLIo8FxcR9cf5JimIEgIGDjFfBPbL4EQA+tcgppoQ8R58 U0pe6L5MjKX0mi9nLnA== X-Authority-Analysis: v=2.4 cv=TdsDJhQh c=1 sm=1 tr=0 ts=6ad7d372 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=6Rn/7xRx7Ub4NEhlm8k1cw==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=e5mUnYsNAAAA:8 a=aXZFJKk2W_MRhlCQtksA:9 a=uKXjsCUrEbL0IQVhDsJ9:22 a=Vxmtnl_E_bksehYqCbjh:22 X-Proofpoint-ORIG-GUID: nmZsbk0VsiIUi319PFwqiVwtaWJvPXZv X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIwMDA4MiBTYWx0ZWRfX7fE4lN3IZ2kX 6Jddg+Nh1Xz/TYwvbn1KzNyRhtOFW+PWPwYQvXZfJYA+kvRmoGnOkCv+p7M0enuZu+XQZTLYqxv QxGHlQ3ZuXcBcHQwuEjb+s8gjqKUzDQ= X-Proofpoint-GUID: nmZsbk0VsiIUi319PFwqiVwtaWJvPXZv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-20_03,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 phishscore=0 impostorscore=0 spamscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610200082 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. Rob Clark (12): drm/msm: Import adreno_snapshot.h drm/msm/a8xx: Export aperture helpers drm/msm/a8xx: Add a8xx_aperture_acquire_slice() 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 | 15 +- drivers/gpu/drm/msm/adreno/a8xx_catalog.c | 668 +---- drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 42 +- drivers/gpu/drm/msm/adreno/a8xx_gpu_state.c | 1253 +++++++++ .../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 | 526 ++++ .../drm/msm/adreno/catalog/adreno_glymur.h | 2315 ++++++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_hawi.h | 2410 +++++++++++++++++ .../drm/msm/adreno/catalog/adreno_kaanapali.h | 2339 ++++++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_maili.h | 1900 +++++++++++++ .../gpu/drm/msm/adreno/catalog/adreno_milos.h | 1994 ++++++++++++++ .../drm/msm/adreno/catalog/adreno_pakala.h | 2178 +++++++++++++++ 15 files changed, 15583 insertions(+), 652 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