1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
new file mode 100644
index 000000000..c229c9107
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -0,0 +1,109 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2018 Intel Corporation
+ */
+
+#ifndef _I915_SCHEDULER_H_
+#define _I915_SCHEDULER_H_
+
+#include <linux/bitops.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+
+#include "i915_scheduler_types.h"
+#include "i915_tasklet.h"
+
+struct drm_printer;
+
+#define priolist_for_each_request(it, plist) \
+	list_for_each_entry(it, &(plist)->requests, sched.link)
+
+#define priolist_for_each_request_consume(it, n, plist) \
+	list_for_each_entry_safe(it, n, &(plist)->requests, sched.link)
+
+void i915_sched_node_init(struct i915_sched_node *node);
+void i915_sched_node_reinit(struct i915_sched_node *node);
+
+bool __i915_sched_node_add_dependency(struct i915_sched_node *node,
+				      struct i915_sched_node *signal,
+				      struct i915_dependency *dep,
+				      unsigned long flags);
+
+int i915_sched_node_add_dependency(struct i915_sched_node *node,
+				   struct i915_sched_node *signal,
+				   unsigned long flags);
+
+void i915_sched_node_fini(struct i915_sched_node *node);
+
+void i915_schedule(struct i915_request *request,
+		   const struct i915_sched_attr *attr);
+
+struct list_head *
+i915_sched_lookup_priolist(struct i915_sched_engine *sched_engine, int prio);
+
+void __i915_priolist_free(struct i915_priolist *p);
+static inline void i915_priolist_free(struct i915_priolist *p)
+{
+	if (p->priority != I915_PRIORITY_NORMAL)
+		__i915_priolist_free(p);
+}
+
+struct i915_sched_engine *
+i915_sched_engine_create(unsigned int subclass);
+
+static inline struct i915_sched_engine *
+i915_sched_engine_get(struct i915_sched_engine *sched_engine)
+{
+	kref_get(&sched_engine->ref);
+	return sched_engine;
+}
+
+static inline void
+i915_sched_engine_put(struct i915_sched_engine *sched_engine)
+{
+	kref_put(&sched_engine->ref, sched_engine->destroy);
+}
+
+static inline bool
+i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine)
+{
+	return RB_EMPTY_ROOT(&sched_engine->queue.rb_root);
+}
+
+static inline void
+i915_sched_engine_reset_on_empty(struct i915_sched_engine *sched_engine)
+{
+	if (i915_sched_engine_is_empty(sched_engine))
+		sched_engine->no_priolist = false;
+}
+
+static inline void
+i915_sched_engine_active_lock_bh(struct i915_sched_engine *sched_engine)
+{
+	local_bh_disable(); /* prevent local softirq and lock recursion */
+	tasklet_lock(&sched_engine->tasklet);
+}
+
+static inline void
+i915_sched_engine_active_unlock_bh(struct i915_sched_engine *sched_engine)
+{
+	tasklet_unlock(&sched_engine->tasklet);
+	local_bh_enable(); /* restore softirq, and kick ksoftirqd! */
+}
+
+void i915_request_show_with_schedule(struct drm_printer *m,
+				     const struct i915_request *rq,
+				     const char *prefix,
+				     int indent);
+
+static inline bool
+i915_sched_engine_disabled(struct i915_sched_engine *sched_engine)
+{
+	return sched_engine->disabled(sched_engine);
+}
+
+void i915_scheduler_module_exit(void);
+int i915_scheduler_module_init(void);
+
+#endif /* _I915_SCHEDULER_H_ */