diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_wakeref.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_wakeref.h | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_wakeref.h b/drivers/gpu/drm/i915/intel_wakeref.h index ec881b097368..909cad13ac1f 100644 --- a/drivers/gpu/drm/i915/intel_wakeref.h +++ b/drivers/gpu/drm/i915/intel_wakeref.h @@ -7,16 +7,25 @@ #ifndef INTEL_WAKEREF_H #define INTEL_WAKEREF_H +#include <drm/drm_print.h> + #include <linux/atomic.h> #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/lockdep.h> #include <linux/mutex.h> #include <linux/refcount.h> +#include <linux/ref_tracker.h> +#include <linux/slab.h> #include <linux/stackdepot.h> #include <linux/timer.h> #include <linux/workqueue.h> +typedef unsigned long intel_wakeref_t; + +#define INTEL_REFTRACK_DEAD_COUNT 16 +#define INTEL_REFTRACK_PRINT_LIMIT 16 + #if IS_ENABLED(CONFIG_DRM_I915_DEBUG) #define INTEL_WAKEREF_BUG_ON(expr) BUG_ON(expr) #else @@ -26,8 +35,6 @@ struct intel_runtime_pm; struct intel_wakeref; -typedef depot_stack_handle_t intel_wakeref_t; - struct intel_wakeref_ops { int (*get)(struct intel_wakeref *wf); int (*put)(struct intel_wakeref *wf); @@ -261,6 +268,30 @@ __intel_wakeref_defer_park(struct intel_wakeref *wf) */ int intel_wakeref_wait_for_idle(struct intel_wakeref *wf); +#define INTEL_WAKEREF_DEF ((intel_wakeref_t)(-1)) + +static inline intel_wakeref_t intel_ref_tracker_alloc(struct ref_tracker_dir *dir) +{ + struct ref_tracker *user = NULL; + + ref_tracker_alloc(dir, &user, GFP_NOWAIT); + + return (intel_wakeref_t)user ?: INTEL_WAKEREF_DEF; +} + +static inline void intel_ref_tracker_free(struct ref_tracker_dir *dir, + intel_wakeref_t handle) +{ + struct ref_tracker *user; + + user = (handle == INTEL_WAKEREF_DEF) ? NULL : (void *)handle; + + ref_tracker_free(dir, &user); +} + +void intel_ref_tracker_show(struct ref_tracker_dir *dir, + struct drm_printer *p); + struct intel_wakeref_auto { struct drm_i915_private *i915; struct timer_list timer; |