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.
Patches #1 and #2 prevent the same faulty job from being resubmitted in a loop, mitigating the first cause of the issue.
However, the issue isn't entirely solved. Even with only a single GPU reset, the UI still freezes on the Raspberry Pi 5, indicating a GPU hang. Patches #3 to #6 address this by properly configuring the V3D_SMS registers, which are required for power management and resets in V3D 7.1.
Patch #7 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@iga...
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@iga...
--- Maíra Canal (7): drm/v3d: Don't run jobs that have errors flagged in its fence drm/v3d: Set job pointer to NULL when the job's fence has an error 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 drm/v3d: Use V3D_SMS registers for power on/off and reset on V3D 7.x dt-bindings: gpu: Add V3D driver maintainer as DT maintainer
.../devicetree/bindings/gpu/brcm,bcm-v3d.yaml | 77 +++++++++++-- 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 | 29 ++++- 9 files changed, 281 insertions(+), 98 deletions(-) --- base-commit: 9e75b6ef407fee5d4ed8021cd7ddd9d6a8f7b0e8 change-id: 20250224-v3d-gpu-reset-fixes-2d21fc70711d