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drm/i915/gt: Flush ongoing retires during wait_for_idle

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Synchronise with any background retires and parking we may have spawned,
so that all requests are accounted for.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/878
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200102231604.1669010-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-01-02 23:16:04 +00:00
parent 9dae9e5381
commit cdd280b1b9
3 changed files with 19 additions and 9 deletions
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5
drivers/gpu/drm/i915/intel_wakeref.c
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@@ -95,16 +95,17 @@ static void __intel_wakeref_put_work(struct work_struct *wrk)
void __intel_wakeref_init(struct intel_wakeref *wf,
struct intel_runtime_pm *rpm,
const struct intel_wakeref_ops *ops,
struct lock_class_key *key)
struct intel_wakeref_lockclass *key)
{
wf->rpm = rpm;
wf->ops = ops;
__mutex_init(&wf->mutex, "wakeref", key);
__mutex_init(&wf->mutex, "wakeref.mutex", &key->mutex);
atomic_set(&wf->count, 0);
wf->wakeref = 0;
INIT_WORK(&wf->work, __intel_wakeref_put_work);
lockdep_init_map(&wf->work.lockdep_map, "wakeref.work", &key->work, 0);
}
int intel_wakeref_wait_for_idle(struct intel_wakeref *wf)