109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2018 Intel Corporation
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*/
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#ifndef _I915_SCHEDULER_H_
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#define _I915_SCHEDULER_H_
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#include <linux/bitops.h>
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#include <linux/list.h>
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#include <linux/kernel.h>
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#include "i915_scheduler_types.h"
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struct drm_printer;
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#define priolist_for_each_request(it, plist) \
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list_for_each_entry(it, &(plist)->requests, sched.link)
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#define priolist_for_each_request_consume(it, n, plist) \
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list_for_each_entry_safe(it, n, &(plist)->requests, sched.link)
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void i915_sched_node_init(struct i915_sched_node *node);
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void i915_sched_node_reinit(struct i915_sched_node *node);
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bool __i915_sched_node_add_dependency(struct i915_sched_node *node,
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struct i915_sched_node *signal,
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struct i915_dependency *dep,
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unsigned long flags);
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int i915_sched_node_add_dependency(struct i915_sched_node *node,
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struct i915_sched_node *signal,
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unsigned long flags);
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void i915_sched_node_fini(struct i915_sched_node *node);
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void i915_schedule(struct i915_request *request,
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const struct i915_sched_attr *attr);
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struct list_head *
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i915_sched_lookup_priolist(struct i915_sched_engine *sched_engine, int prio);
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void __i915_priolist_free(struct i915_priolist *p);
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static inline void i915_priolist_free(struct i915_priolist *p)
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{
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if (p->priority != I915_PRIORITY_NORMAL)
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__i915_priolist_free(p);
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}
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struct i915_sched_engine *
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i915_sched_engine_create(unsigned int subclass);
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static inline struct i915_sched_engine *
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i915_sched_engine_get(struct i915_sched_engine *sched_engine)
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{
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kref_get(&sched_engine->ref);
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return sched_engine;
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}
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static inline void
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i915_sched_engine_put(struct i915_sched_engine *sched_engine)
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{
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kref_put(&sched_engine->ref, sched_engine->destroy);
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}
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static inline bool
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i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine)
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{
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return RB_EMPTY_ROOT(&sched_engine->queue.rb_root);
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}
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static inline void
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i915_sched_engine_reset_on_empty(struct i915_sched_engine *sched_engine)
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{
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if (i915_sched_engine_is_empty(sched_engine))
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sched_engine->no_priolist = false;
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}
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static inline void
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i915_sched_engine_active_lock_bh(struct i915_sched_engine *sched_engine)
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{
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local_bh_disable(); /* prevent local softirq and lock recursion */
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tasklet_lock(&sched_engine->tasklet);
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}
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static inline void
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i915_sched_engine_active_unlock_bh(struct i915_sched_engine *sched_engine)
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{
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tasklet_unlock(&sched_engine->tasklet);
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local_bh_enable(); /* restore softirq, and kick ksoftirqd! */
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}
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void i915_request_show_with_schedule(struct drm_printer *m,
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const struct i915_request *rq,
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const char *prefix,
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int indent);
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static inline bool
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i915_sched_engine_disabled(struct i915_sched_engine *sched_engine)
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{
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return sched_engine->disabled(sched_engine);
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}
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void i915_scheduler_module_exit(void);
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int i915_scheduler_module_init(void);
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#endif /* _I915_SCHEDULER_H_ */
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