drm/i915: Remove intel_ring.last_retired_head
Storing the position of the breadcrumb of the last retired request as
a separate last_retired_head is superfluous as we always copy that into
head prior to recalculation of the intel_ring.space.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170321102552.24357-1-chris@chris-wilson.co.uk
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index 0e8d101..dbfa9db 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -295,7 +295,7 @@ static void i915_gem_request_retire(struct drm_i915_gem_request *request)
* completion order.
*/
list_del(&request->ring_link);
- request->ring->last_retired_head = request->postfix;
+ request->ring->head = request->postfix;
if (!--request->i915->gt.active_requests) {
GEM_BUG_ON(!request->i915->gt.awake);
mod_delayed_work(request->i915->wq,