On 17/03/25 22:01, Maíra Canal wrote:
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 #5 address this by properly configuring the
V3D_SMS registers, which are required for power management and resets
in V3D 7.1.
Patches #2 and #4 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 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
[...]
Applied to misc/kernel.git (drm-misc-next). Before applying PATCH 1/5, I
fixed the W=1 warning reported by the kernel test robot with the
following diff:
- gen = (enum v3d_gen)of_device_get_match_data(dev);
+ gen = (uintptr_t)of_device_get_match_data(dev);
Thanks for all involved in the reviewing process!
Best Regards,
- Maíra
---
Maíra Canal (5):
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 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 | 90 ++++++++++++---
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, 271 insertions(+), 98 deletions(-)
---
base-commit: 83a0237859bc5a9e0a716e1db8e7fd3cafd63259
change-id: 20250224-v3d-gpu-reset-fixes-2d21fc70711d
