• Ben Widawsky's avatar
    drm/i915: move vbetool invoked ier stuff · be998e2e
    Ben Widawsky authored
    
    
    This extra bit of interrupt enabling code doesn't belong in the wait
    seqno function. If anything we should pull it out to a helper so the
    throttle code can also use it. The history is a bit vague, but I am
    going to attempt to just dump it, unless someone can argue otherwise.
    
    Removing this allows for a shared lock free wait seqno function. To keep
    tabs on this issue though, the IER value is stored on error capture
    (recommended by Chris Wilson)
    
    v2: fixed typo EIR->IER (Ben)
    Fix some white space (Ben)
    Move IER capture to globally instead of per ring (Ben)
    Signed-off-by: default avatarBen Widawsky <ben@bwidawsk.net>
    [danvet: ier is a 16 bit reg on gen2!]
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    be998e2e