This series addresses GPU reset issues reported in [1], where running a long compute job would trigger repeated GPU resets, leading to a UI freeze. The patches that prevent the same faulty job from being resubmitted in a loop were merged in drm-misc/drm-misc-fixes in v4. However, those patches don't solve the issue entirely. Even with a single GPU reset, the UI still freezes on the Raspberry Pi 5, indicating a GPU hang. Patches #1, #3, and #6 address this by properly configuring the V3D_SMS registers, which are required for power management and resets in V3D 7.1. Patches #2, #4, and #5 are associated changes related to the robustness of the DT bindings. Patch #3 added a new register bank to the DT binding and during the reviewing process, we identified points that could to be improved in the DT binding. Patch #2 started by adding per-compatible register restrictions to ensure that the DTB accurately reflects the hardware design. Patch #4 adds more examples to improve DT binding checks and #5 updates the DT maintainership, replacing Emma with the current v3d driver maintainer. [1] https://github.com/raspberrypi/linux/issues/6660 Best Regards, - Maíra --- v1 -> v2: - [1/6, 2/6, 5/6] Add Iago's R-b (Iago Toral) - [3/6] Use V3D_GEN_* macros consistently throughout the driver (Phil Elwell) - [3/6] Don't add Iago's R-b in 3/6 due to changes in the patch - [4/6] Add per-compatible restrictions to enforce per‐SoC register rules (Conor Dooley) - [6/6] Add Emma's A-b, collected through IRC (Emma Anholt) - [6/6] Add Rob's A-b (Rob Herring) - Link to v1: https://lore.kernel.org/r/20250226-v3d-gpu-reset-fixes-v1-0-83a969fdd9c1@xxxxxxxxxx v2 -> v3: - [3/7] Add Iago's R-b (Iago Toral) - [4/7, 5/7] Separate the patches to ease the reviewing process -> Now, PATCH 4/7 only adds the per-compatible rules and PATCH 5/7 adds the SMS registers - [4/7] `allOf` goes above `additionalProperties` (Krzysztof Kozlowski) - [4/7, 5/7] Sync `reg` and `reg-names` items (Krzysztof Kozlowski) - Link to v2: https://lore.kernel.org/r/20250308-v3d-gpu-reset-fixes-v2-0-2939c30f0cc4@xxxxxxxxxx v3 -> v4: - [4/7] BCM2712 has an external reset controller, therefore the "bridge" register is not needed (Krzysztof Kozlowski) - [4/7] Remove the word "required" from the reg descriptions (Rob Herring) - [5/7] Improve commit message (Rob Herring) - Link to v3: https://lore.kernel.org/r/20250311-v3d-gpu-reset-fixes-v3-0-64f7a4247ec0@xxxxxxxxxx v4 -> v5: - [1/7, 2/7] Applied to drm-misc/drm-misc-fixes - Changed the commit order to aggregate all DT binding related patches - [2/6] Add the widest constraints to `reg` and `reg-names` (Krzysztof Kozlowski) - [2/6] Only declare the registers that exists in a SoC, don't declare all the possible registers for a V3D generation (Krzysztof Kozlowski) - [2/6] Enforce register order by ascending address/offset (Florian Fainelli) - [2/6] Fix the example to match the new stable ABI - [3/6] Add Krzysztof's A-b (Krzysztof Kozlowski) - [4/6] New PATCH: Add more examples to the DT binding - [5/6] Add "v3d: " to commit title - Link to v4: https://lore.kernel.org/r/20250313-v3d-gpu-reset-fixes-v4-0-c1e780d8e096@xxxxxxxxxx --- Maíra Canal (6): drm/v3d: Associate a V3D tech revision to all supported devices dt-bindings: gpu: v3d: Add per-compatible register restrictions dt-bindings: gpu: v3d: Add SMS register to BCM2712 compatible dt-bindings: gpu: v3d: Add additional examples to improve binding checks dt-bindings: gpu: v3d: Add V3D driver maintainer as DT maintainer drm/v3d: Use V3D_SMS registers for power on/off and reset on V3D 7.x .../devicetree/bindings/gpu/brcm,bcm-v3d.yaml | 124 +++++++++++++++++--- drivers/gpu/drm/v3d/v3d_debugfs.c | 126 ++++++++++----------- drivers/gpu/drm/v3d/v3d_drv.c | 62 +++++++++- drivers/gpu/drm/v3d/v3d_drv.h | 22 +++- drivers/gpu/drm/v3d/v3d_gem.c | 27 ++++- drivers/gpu/drm/v3d/v3d_irq.c | 6 +- drivers/gpu/drm/v3d/v3d_perfmon.c | 4 +- drivers/gpu/drm/v3d/v3d_regs.h | 26 +++++ drivers/gpu/drm/v3d/v3d_sched.c | 6 +- 9 files changed, 303 insertions(+), 100 deletions(-) --- base-commit: 83a0237859bc5a9e0a716e1db8e7fd3cafd63259 change-id: 20250224-v3d-gpu-reset-fixes-2d21fc70711d
