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drm/i915: track ring progression using seqnos

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Instead of relying in acthd, track ring seqno progression
to detect if ring has hung.

v2: put hangcheck stuff inside struct (Chris Wilson)

v3: initialize hangcheck.seqno (Ben Widawsky)

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Mika Kuoppala
2013-05-24 17:16:07 +03:00
committed by Daniel Vetter
parent 79ee20dc85
commit 92cab73451
4 changed files with 20 additions and 19 deletions
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drivers/gpu/drm/i915/intel_ringbuffer.c
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@@ -1502,6 +1502,7 @@ void intel_ring_init_seqno(struct intel_ring_buffer *ring, u32 seqno)
}
ring->set_seqno(ring, seqno);
ring->hangcheck.seqno = seqno;
}
void intel_ring_advance(struct intel_ring_buffer *ring)