drivers/gpu/drm/i915/i915_scheduler.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright © 2018 Intel Corporation
   5  */
   6
   7 #ifndef _I915_SCHEDULER_H_
   8 #define _I915_SCHEDULER_H_
   9
  10 #include <linux/bitops.h>
  11 #include <linux/list.h>
  12 #include <linux/kernel.h>
  13
  14 #include "i915_scheduler_types.h"
  15
  16 struct drm_printer;
  17
  18 #define priolist_for_each_request(it, plist, idx) \
  19         for (idx = 0; idx < ARRAY_SIZE((plist)->requests); idx++) \
  20                 list_for_each_entry(it, &(plist)->requests[idx], sched.link)
  21
  22 #define priolist_for_each_request_consume(it, n, plist, idx) \
  23         for (; \
  24              (plist)->used ? (idx = __ffs((plist)->used)), 1 : 0; \
  25              (plist)->used &= ~BIT(idx)) \
  26                 list_for_each_entry_safe(it, n, \
  27                                          &(plist)->requests[idx], \
  28                                          sched.link)
  29
  30 void i915_sched_node_init(struct i915_sched_node *node);
  31 void i915_sched_node_reinit(struct i915_sched_node *node);
  32
  33 bool __i915_sched_node_add_dependency(struct i915_sched_node *node,
  34                                       struct i915_sched_node *signal,
  35                                       struct i915_dependency *dep,
  36                                       unsigned long flags);
  37
  38 int i915_sched_node_add_dependency(struct i915_sched_node *node,
  39                                    struct i915_sched_node *signal,
  40                                    unsigned long flags);
  41
  42 void i915_sched_node_fini(struct i915_sched_node *node);
  43
  44 void i915_schedule(struct i915_request *request,
  45                    const struct i915_sched_attr *attr);
  46
  47 void i915_schedule_bump_priority(struct i915_request *rq, unsigned int bump);
  48
  49 struct list_head *
  50 i915_sched_lookup_priolist(struct intel_engine_cs *engine, int prio);
  51
  52 void __i915_priolist_free(struct i915_priolist *p);
  53 static inline void i915_priolist_free(struct i915_priolist *p)
  54 {
  55         if (p->priority != I915_PRIORITY_NORMAL)
  56                 __i915_priolist_free(p);
  57 }
  58
  59 void i915_request_show_with_schedule(struct drm_printer *m,
  60                                      const struct i915_request *rq,
  61                                      const char *prefix,
  62                                      int indent);
  63
  64 #endif /* _I915_SCHEDULER_H_ */