intel_global_state.h

 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2020 Intel Corporation
 4 */
 5
 6#ifndef __INTEL_GLOBAL_STATE_H__
 7#define __INTEL_GLOBAL_STATE_H__
 8
 9#include <linux/kref.h>
10#include <linux/list.h>
11
12struct intel_atomic_state;
13struct intel_display;
14struct intel_global_commit;
15struct intel_global_obj;
16struct intel_global_state;
17
18struct intel_global_state_funcs {
19	struct intel_global_state *(*atomic_duplicate_state)(struct intel_global_obj *obj);
20	void (*atomic_destroy_state)(struct intel_global_obj *obj,
21				     struct intel_global_state *state);
22};
23
24struct intel_global_obj {
25	struct list_head head;
26	struct intel_global_state *state;
27	const struct intel_global_state_funcs *funcs;
28};
29
30struct intel_global_state {
31	struct intel_global_obj *obj;
32	struct intel_atomic_state *state;
33	struct intel_global_commit *commit;
34	struct kref ref;
35	bool changed, serialized;
36};
37
38void intel_atomic_global_obj_init(struct intel_display *display,
39				  struct intel_global_obj *obj,
40				  struct intel_global_state *state,
41				  const struct intel_global_state_funcs *funcs);
42void intel_atomic_global_obj_cleanup(struct intel_display *display);
43
44struct intel_global_state *
45intel_atomic_get_global_obj_state(struct intel_atomic_state *state,
46				  struct intel_global_obj *obj);
47struct intel_global_state *
48intel_atomic_get_old_global_obj_state(struct intel_atomic_state *state,
49				      struct intel_global_obj *obj);
50struct intel_global_state *
51intel_atomic_get_new_global_obj_state(struct intel_atomic_state *state,
52				      struct intel_global_obj *obj);
53
54void intel_atomic_swap_global_state(struct intel_atomic_state *state);
55void intel_atomic_clear_global_state(struct intel_atomic_state *state);
56int intel_atomic_lock_global_state(struct intel_global_state *obj_state);
57int intel_atomic_serialize_global_state(struct intel_global_state *obj_state);
58
59int intel_atomic_global_state_setup_commit(struct intel_atomic_state *state);
60void intel_atomic_global_state_commit_done(struct intel_atomic_state *state);
61int intel_atomic_global_state_wait_for_dependencies(struct intel_atomic_state *state);
62
63bool intel_atomic_global_state_is_serialized(struct intel_atomic_state *state);
64
65#endif