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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_BREADCRUMBS__
#define __INTEL_BREADCRUMBS__
#include <linux/atomic.h>
#include <linux/irq_work.h>
#include "intel_engine_types.h"
struct drm_printer;
struct i915_request;
struct intel_breadcrumbs;
struct intel_breadcrumbs *
intel_breadcrumbs_create(struct intel_engine_cs *irq_engine);
void intel_breadcrumbs_free(struct intel_breadcrumbs *b);
void intel_breadcrumbs_reset(struct intel_breadcrumbs *b);
void __intel_breadcrumbs_park(struct intel_breadcrumbs *b);
static inline void intel_breadcrumbs_unpark(struct intel_breadcrumbs *b)
{
atomic_inc(&b->active);
}
static inline void intel_breadcrumbs_park(struct intel_breadcrumbs *b)
{
if (atomic_dec_and_test(&b->active))
__intel_breadcrumbs_park(b);
}
static inline void
intel_engine_signal_breadcrumbs(struct intel_engine_cs *engine)
{
irq_work_queue(&engine->breadcrumbs->irq_work);
}
void intel_engine_print_breadcrumbs(struct intel_engine_cs *engine,
struct drm_printer *p);
bool i915_request_enable_breadcrumb(struct i915_request *request);
void i915_request_cancel_breadcrumb(struct i915_request *request);
void intel_context_remove_breadcrumbs(struct intel_context *ce,
struct intel_breadcrumbs *b);
#endif /* __INTEL_BREADCRUMBS__ */
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