[Intel-gfx] [PATCH] drm/i915: Report an earlier wedged event when suspending the engines

[Chris Wilson]

Quoting Chris Wilson (2019-05-31 12:32:45)
> On i915_gem_load_power_context() we do care whether or not we succeed in
> completing the switch back to the kernel context (via idling the
> engines). Currently, we detect if an error occurs while we wait, but we
> do not report one if it occurred beforehand (and the status of the
> switch is undefined). Check the current terminally wedged status on
> entering the wait, and report it after flushing the requests, as if it
> had occurred during our own wait.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110824
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>