[Bug 57963] [Regression IVB]intel_do_flush_locked failed with call trace

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=57963

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 107f27a5df8ad33a351d6e82fe95ff92b428f72e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Dec 10 13:56:17 2012 +0200

    drm/i915: Open-code i915_gpu_idle() for handling seqno wrapping

    The complication is that during seqno wrapping we must be extremely
    careful not to write to any ring as that will require a new seqno, and
    so would recurse back into the seqno wrap handler. So we cannot call
    i915_gpu_idle() as that does additional work beyond simply retiring the
    current set of requests, and instead must do the minimal work ourselves
    during seqno wrapping.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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