Hello,
Here's is collection of patches addressing some stability issues.
The first patch has been submitted a while ago but was lacking a way to kill in-flight jobs when a context is closed; which is now addressed in patch 10.
The rest of those patches are improving fault handling (with some code refactoring in the middle).
"drm/panfrost: Do the exception -> string translation using a table" still has a TODO. I basically mapped all exception types to EINVAL since most faults are triggered by invalid job/shaders, but there might be some exceptions that should be translated to something else. Any feedback on that aspect is welcome.
Regards,
Boris
Boris Brezillon (10): drm/panfrost: Make sure MMU context lifetime is not bound to panfrost_priv drm/panfrost: Get rid of the unused JS_STATUS_EVENT_ACTIVE definition drm/panfrost: Drop the pfdev argument passed to panfrost_exception_name() drm/panfrost: Expose exception types to userspace drm/panfrost: Disable the AS on unhandled page faults drm/panfrost: Expose a helper to trigger a GPU reset drm/panfrost: Reset the GPU when the AS_ACTIVE bit is stuck drm/panfrost: Do the exception -> string translation using a table drm/panfrost: Don't reset the GPU on job faults unless we really have to drm/panfrost: Kill in-flight jobs on FD close
drivers/gpu/drm/panfrost/panfrost_device.c | 143 +++++++++++------ drivers/gpu/drm/panfrost/panfrost_device.h | 21 ++- drivers/gpu/drm/panfrost/panfrost_drv.c | 50 ++---- drivers/gpu/drm/panfrost/panfrost_gem.c | 20 ++- drivers/gpu/drm/panfrost/panfrost_gpu.c | 2 +- drivers/gpu/drm/panfrost/panfrost_job.c | 74 ++++++--- drivers/gpu/drm/panfrost/panfrost_mmu.c | 173 ++++++++++++++------- drivers/gpu/drm/panfrost/panfrost_mmu.h | 5 +- drivers/gpu/drm/panfrost/panfrost_regs.h | 3 - include/uapi/drm/panfrost_drm.h | 65 ++++++++ 10 files changed, 371 insertions(+), 185 deletions(-)