64 lines · c
1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2019 Intel Corporation4 */5 6#ifndef __INTEL_BREADCRUMBS__7#define __INTEL_BREADCRUMBS__8 9#include <linux/atomic.h>10#include <linux/irq_work.h>11 12#include "intel_breadcrumbs_types.h"13 14struct drm_printer;15struct i915_request;16struct intel_breadcrumbs;17 18struct intel_breadcrumbs *19intel_breadcrumbs_create(struct intel_engine_cs *irq_engine);20void intel_breadcrumbs_free(struct kref *kref);21 22void intel_breadcrumbs_reset(struct intel_breadcrumbs *b);23void __intel_breadcrumbs_park(struct intel_breadcrumbs *b);24 25static inline void intel_breadcrumbs_unpark(struct intel_breadcrumbs *b)26{27 atomic_inc(&b->active);28}29 30static inline void intel_breadcrumbs_park(struct intel_breadcrumbs *b)31{32 if (atomic_dec_and_test(&b->active))33 __intel_breadcrumbs_park(b);34}35 36static inline void37intel_engine_signal_breadcrumbs(struct intel_engine_cs *engine)38{39 irq_work_queue(&engine->breadcrumbs->irq_work);40}41 42void intel_engine_print_breadcrumbs(struct intel_engine_cs *engine,43 struct drm_printer *p);44 45bool i915_request_enable_breadcrumb(struct i915_request *request);46void i915_request_cancel_breadcrumb(struct i915_request *request);47 48void intel_context_remove_breadcrumbs(struct intel_context *ce,49 struct intel_breadcrumbs *b);50 51static inline struct intel_breadcrumbs *52intel_breadcrumbs_get(struct intel_breadcrumbs *b)53{54 kref_get(&b->ref);55 return b;56}57 58static inline void intel_breadcrumbs_put(struct intel_breadcrumbs *b)59{60 kref_put(&b->ref, intel_breadcrumbs_free);61}62 63#endif /* __INTEL_BREADCRUMBS__ */64