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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-11-18 23:02:46 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-11-19 18:02:48 +0000 |
| commit | f4ba0707c825d60f1d0f5ce7bd3d875e68f3e204 (patch) | |
| tree | b42c7d592edd7418a4d7d7cf81c69610068dc0c2 /drivers/gpu/drm/i915/intel_wakeref.c | |
| parent | 8ad305f1a29a8c06586aaef87443ce14936aac30 (diff) | |
| download | linux-f4ba0707c825d60f1d0f5ce7bd3d875e68f3e204.tar.gz | |
drm/i915: Wait until the intel_wakeref idle callback is complete
When waiting for idle, serialise with any ongoing callback so that it
will have completed before completing the wait.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191118230254.2615942-12-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_wakeref.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_wakeref.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_wakeref.c b/drivers/gpu/drm/i915/intel_wakeref.c index 868cc78048d0..ad26d7f4ca3d 100644 --- a/drivers/gpu/drm/i915/intel_wakeref.c +++ b/drivers/gpu/drm/i915/intel_wakeref.c @@ -109,8 +109,17 @@ void __intel_wakeref_init(struct intel_wakeref *wf, int intel_wakeref_wait_for_idle(struct intel_wakeref *wf) { - return wait_var_event_killable(&wf->wakeref, - !intel_wakeref_is_active(wf)); + int err; + + might_sleep(); + + err = wait_var_event_killable(&wf->wakeref, + !intel_wakeref_is_active(wf)); + if (err) + return err; + + intel_wakeref_unlock_wait(wf); + return 0; } static void wakeref_auto_timeout(struct timer_list *t) |