Add drmm_alloc_ordered_workqueue(), a helper that provides managed ordered
workqueue cleanup. The workqueue will be destroyed with the final
reference of the DRM device.
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Louis Chauvet <louis.chauvet@xxxxxxxxxxx>
---
drivers/gpu/drm/drm_managed.c | 8 ++++++++
include/drm/drm_managed.h | 12 ++++++++++++
2 files changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/drm_managed.c b/drivers/gpu/drm/drm_managed.c
index 79ce86a5bd67a7201f5d60550a12364f2628e0ec..cc4c463daae7ca44914d3468457a22574cdd0a54 100644
--- a/drivers/gpu/drm/drm_managed.c
+++ b/drivers/gpu/drm/drm_managed.c
@@ -310,3 +310,11 @@ void __drmm_mutex_release(struct drm_device *dev, void *res)
mutex_destroy(lock);
}
EXPORT_SYMBOL(__drmm_mutex_release);
+
+void __drmm_workqueue_release(struct drm_device *device, void *res)
+{
+ struct workqueue_struct *wq = res;
+
+ destroy_workqueue(wq);
+}
+EXPORT_SYMBOL(__drmm_workqueue_release);
diff --git a/include/drm/drm_managed.h b/include/drm/drm_managed.h
index f547b09ca0239dd7c4fb734038bae4438321395c..53017cc609ac617283e3be70cb5759908b049c4d 100644
--- a/include/drm/drm_managed.h
+++ b/include/drm/drm_managed.h
@@ -127,4 +127,16 @@ void __drmm_mutex_release(struct drm_device *dev, void *res);
drmm_add_action_or_reset(dev, __drmm_mutex_release, lock); \
}) \
+void __drmm_workqueue_release(struct drm_device *device, void *wq);
+
+#define drmm_alloc_ordered_workqueue(dev, fmt, flags, args...) \
+ ({ \
+ struct workqueue_struct *wq = alloc_ordered_workqueue(fmt, flags, ##args); \
+ wq ? ({ \
+ int ret = drmm_add_action_or_reset(dev, __drmm_workqueue_release, wq); \
+ ret ? ERR_PTR(ret) : wq; \
+ }) : \
+ wq; \
+ })
+
#endif
--
2.47.1
