If the gpu reset fails and the machine is terminally wedged, further hangchecks achieve nothing but noise. Disable them, with a corollary that we re-enable hangchecking after a successful GPU reset in case the user is artificially bringing the machine back to life through the debug interface. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_drv.c | 2 ++ drivers/gpu/drm/i915/intel_hangcheck.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 445fec9c2841..d3ee72449025 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1814,6 +1814,8 @@ void i915_reset(struct drm_i915_private *dev_priv) goto error; } + i915_queue_hangcheck(dev_priv); + wakeup: wake_up_bit(&error->flags, I915_RESET_IN_PROGRESS); return; diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c index 53df5b11bff4..c0cfa5b8b87e 100644 --- a/drivers/gpu/drm/i915/intel_hangcheck.c +++ b/drivers/gpu/drm/i915/intel_hangcheck.c @@ -319,6 +319,9 @@ static void i915_hangcheck_elapsed(struct work_struct *work) if (!READ_ONCE(dev_priv->gt.awake)) return; + if (i915_terminally_wedged(&dev_priv->gpu_error)) + return; + /* As enabling the GPU requires fairly extensive mmio access, * periodically arm the mmio checker to see if we are triggering * any invalid access. -- 2.10.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
