diff options
| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-11-18 23:02:46 +0000 |
|---|---|---|
| committer |   Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-11-25 15:28:59 +0200 |
| commit | f83d7e3f5189eb78e481cd02da93e4e32a253493 (patch) | |
| tree | 4128676aca267bbe11d0fde644c44b2dcfd725f3 /drivers/gpu/drm/i915/intel_wakeref.h | |
| parent | drm/i915/gt: Fixup config ifdeffery for pm_suspend_target_state (diff) | |
| download | linux-dev-f83d7e3f5189eb78e481cd02da93e4e32a253493.tar.xz linux-dev-f83d7e3f5189eb78e481cd02da93e4e32a253493.zip | |
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
(cherry picked from commit f4ba0707c825d60f1d0f5ce7bd3d875e68f3e204)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_wakeref.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_wakeref.h b/drivers/gpu/drm/i915/intel_wakeref.h index 5f0c972a80fb..affe4de3746b 100644 --- a/drivers/gpu/drm/i915/intel_wakeref.h +++ b/drivers/gpu/drm/i915/intel_wakeref.h @@ -152,6 +152,21 @@ intel_wakeref_unlock(struct intel_wakeref *wf) } /** + * intel_wakeref_unlock_wait: Wait until the active callback is complete + * @wf: the wakeref + * + * Waits for the active callback (under the @wf->mutex or another CPU) is + * complete. + */ +static inline void +intel_wakeref_unlock_wait(struct intel_wakeref *wf) +{ + mutex_lock(&wf->mutex); + mutex_unlock(&wf->mutex); + flush_work(&wf->work); +} + +/** * intel_wakeref_is_active: Query whether the wakeref is currently held * @wf: the wakeref * |