From: Rob Clark robdclark@chromium.org
Currently, for GL_EXT_robustness userspace uses the global and per- submitqueue fault counters to determine GUILTY_CONTEXT_RESET_EXT vs INNOCENT_CONTEXT_RESET_EXT. But that is a bit overly paranoid, in that a fault in a different process's context (when it has it's own isolated address space) should not hurt anything.
This is particularly annoying with CrOS and chrome's exit_on_context_lost quirk, while running deqp in the android container, as the deqp-egl suite has tests that intentionally trigger gpu hangs (for the purpose of testing the robustness extension), which triggers chrome to restart, which restarts the android container!
This new param gives userspace a way to ignore faults triggered by other processes.
Applies on top of https://patchwork.freedesktop.org/series/98907/
Rob Clark (2): drm/msm/gpu: Add ctx to get_param() drm/msm/gpu: Add param to get address space faults
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 6 +++++- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 3 ++- drivers/gpu/drm/msm/msm_drv.c | 4 +++- drivers/gpu/drm/msm/msm_gem.h | 3 +++ drivers/gpu/drm/msm/msm_gpu.c | 1 + drivers/gpu/drm/msm/msm_gpu.h | 3 ++- drivers/gpu/drm/msm/msm_rd.c | 6 ++++-- include/uapi/drm/msm_drm.h | 3 ++- 8 files changed, 22 insertions(+), 7 deletions(-)