drm/i915: On GPU reset, set the HWS breadcrumb to the last seqno
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 negligible, 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 <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1460010558-10705-2-git-send-email-chris@chris-wilson.co.uk
This commit is contained in:
parent
14fd0d6d0b
commit
2ed53a94d8
|
@ -2882,6 +2882,8 @@ static void i915_gem_reset_engine_cleanup(struct drm_i915_private *dev_priv,
|
|||
buffer->last_retired_head = buffer->tail;
|
||||
intel_ring_update_space(buffer);
|
||||
}
|
||||
|
||||
intel_ring_init_seqno(engine, engine->last_submitted_seqno);
|
||||
}
|
||||
|
||||
void i915_gem_reset(struct drm_device *dev)
|
||||
|
|
Loading…
Reference in a new issue