• Mika Kuoppala's avatar
    drm/i915: Remove nested work in gpu error handling · b8d24a06
    Mika Kuoppala authored
    Now when we declare gpu errors only through our own dedicated
    hangcheck workqueue there is no need to have a separate workqueue
    for handling the resetting and waking up the clients as the deadlock
    concerns are no more.
    
    The only exception is i915_debugfs::i915_set_wedged, which triggers
    error handling through process context. However as this is only used through
    test harness it is responsibility for test harness not to introduce hangs
    through both debug interface and through hangcheck mechanism at the same time.
    
    Remove gpu_error.work and let the hangcheck work do the tasks it used to.
    
    v2: Add a big warning sign into i915_debugfs::i915_set_wedged (Chris)
    
    Cc: Chris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
    Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    b8d24a06
i915_debugfs.c 119 KB