After the GPU reset and we discard all of the incomplete requests, mark
the GPU as having advanced to the last_submitted_seqno (as having
completed the requests and ready for fresh work). The impact of this is
negligble, as all the requests will be considered completed by this
point, it just brings the HWS into line with expectations for external
viewers.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b956b8813307..a713e8a6cb36 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2818,6 +2818,8 @@ static void i915_gem_reset_ring_cleanup(struct
drm_i915_private *dev_priv,
buffer->last_retired_head = buffer->tail;
intel_ring_update_space(buffer);
}
+
+ intel_ring_init_seqno(ring, ring->last_submitted_seqno);
}
void i915_gem_reset(struct drm_device *dev)
--
2.7.0.rc3
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