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Groups > linux.kernel > #1618399

[PATCH 5/5] i915: fence workqueue optimization

From Andrea Arcangeli <aarcange@redhat.com>
Newsgroups linux.kernel
Subject [PATCH 5/5] i915: fence workqueue optimization
Date 2017-04-07 01:30 +0200
Message-ID <ttp0J-7ym-5@gated-at.bofh.it> (permalink)
References <tsbVU-7s-13@gated-at.bofh.it> <ttp0J-7ym-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Insist to run llist_del_all() until the free_list is found empty, this
may avoid having to schedule more workqueues.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
---
 drivers/gpu/drm/i915/intel_display.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 24f303e..931f0c7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14374,9 +14374,9 @@ static void intel_atomic_helper_free_state(struct drm_i915_private *dev_priv)
 	struct intel_atomic_state *state, *next;
 	struct llist_node *freed;
 
-	freed = llist_del_all(&dev_priv->atomic_helper.free_list);
-	llist_for_each_entry_safe(state, next, freed, freed)
-		drm_atomic_state_put(&state->base);
+	while ((freed = llist_del_all(&dev_priv->atomic_helper.free_list)))
+		llist_for_each_entry_safe(state, next, freed, freed)
+			drm_atomic_state_put(&state->base);
 }
 
 static void intel_atomic_helper_free_state_worker(struct work_struct *work)

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Thread

Re: [Intel-gfx] [BUG][REGRESSION] i915 gpu hangs under load Thorsten Leemhuis <regressions@leemhuis.info> - 2017-04-02 14:00 +0200
  Re: [Intel-gfx] [BUG][REGRESSION] i915 gpu hangs under load Martin Kepplinger <martink@posteo.de> - 2017-04-02 14:20 +0200
    Re: [Intel-gfx] [BUG][REGRESSION] i915 gpu hangs under load Jani Nikula <jani.nikula@linux.intel.com> - 2017-04-03 17:20 +0200
      [PATCH 1/5] i915: avoid kernel hang caused by synchronize rcu struct_mutex deadlock Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
        Re: [Intel-gfx] [PATCH 1/5] i915: avoid kernel hang caused by  synchronize rcu struct_mutex deadlock Joonas Lahtinen <joonas.lahtinen@linux.intel.com> - 2017-04-07 11:10 +0200
      [PATCH 3/5] i915: initialize the free_list of the fencing atomic_helper Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
        Re: [PATCH 3/5] i915: initialize the free_list of the fencing  atomic_helper Chris Wilson <chris@chris-wilson.co.uk> - 2017-04-07 12:40 +0200
      [PATCH 5/5] i915: fence workqueue optimization Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
        Re: [PATCH 5/5] i915: fence workqueue optimization Chris Wilson <chris@chris-wilson.co.uk> - 2017-04-07 12:00 +0200
          Re: [PATCH 5/5] i915: fence workqueue optimization Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 15:20 +0200
      [PATCH 4/5] i915: schedule while freeing the lists of gem objects Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
      [PATCH 0/5] Re: [Intel-gfx] [BUG][REGRESSION] i915 gpu hangs under load Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
        [PATCH 2/5] i915: flush gem obj freeing workqueues to add accuracy to the i915 shrinker Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 01:30 +0200
          Re: [PATCH 2/5] i915: flush gem obj freeing workqueues to add  accuracy to the i915 shrinker Chris Wilson <chris@chris-wilson.co.uk> - 2017-04-07 12:10 +0200
            Re: [PATCH 2/5] i915: flush gem obj freeing workqueues to add  accuracy to the i915 shrinker Andrea Arcangeli <aarcange@redhat.com> - 2017-04-07 15:10 +0200
              Re: [PATCH 2/5] i915: flush gem obj freeing workqueues to add  accuracy to the i915 shrinker Chris Wilson <chris@chris-wilson.co.uk> - 2017-04-07 17:40 +0200
                Re: [PATCH 2/5] i915: flush gem obj freeing workqueues to add  accuracy to the i915 shrinker Andrea Arcangeli <aarcange@redhat.com> - 2017-04-09 22:20 +0200
                Re: [PATCH 2/5] i915: flush gem obj freeing workqueues to add  accuracy to the i915 shrinker Chris Wilson <chris@chris-wilson.co.uk> - 2017-04-10 11:40 +0200
        Re: [PATCH 0/5] Re: [Intel-gfx] [BUG][REGRESSION] i915 gpu hangs  under load Martin Kepplinger <martink@posteo.de> - 2017-04-10 12:20 +0200

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