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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 drm_i915_private;
13struct intel_atomic_state;
14struct intel_global_obj;
15struct intel_global_state;
16
17struct intel_global_state_funcs {
18 struct intel_global_state *(*atomic_duplicate_state)(struct intel_global_obj *obj);
19 void (*atomic_destroy_state)(struct intel_global_obj *obj,
20 struct intel_global_state *state);
21};
22
23struct intel_global_obj {
24 struct list_head head;
25 struct intel_global_state *state;
26 const struct intel_global_state_funcs *funcs;
27};
28
29#define intel_for_each_global_obj(obj, dev_priv) \
30 list_for_each_entry(obj, &(dev_priv)->global_obj_list, head)
31
32#define for_each_new_global_obj_in_state(__state, obj, new_obj_state, __i) \
33 for ((__i) = 0; \
34 (__i) < (__state)->num_global_objs && \
35 ((obj) = (__state)->global_objs[__i].ptr, \
36 (new_obj_state) = (__state)->global_objs[__i].new_state, 1); \
37 (__i)++) \
38 for_each_if(obj)
39
40#define for_each_old_global_obj_in_state(__state, obj, new_obj_state, __i) \
41 for ((__i) = 0; \
42 (__i) < (__state)->num_global_objs && \
43 ((obj) = (__state)->global_objs[__i].ptr, \
44 (new_obj_state) = (__state)->global_objs[__i].old_state, 1); \
45 (__i)++) \
46 for_each_if(obj)
47
48#define for_each_oldnew_global_obj_in_state(__state, obj, old_obj_state, new_obj_state, __i) \
49 for ((__i) = 0; \
50 (__i) < (__state)->num_global_objs && \
51 ((obj) = (__state)->global_objs[__i].ptr, \
52 (old_obj_state) = (__state)->global_objs[__i].old_state, \
53 (new_obj_state) = (__state)->global_objs[__i].new_state, 1); \
54 (__i)++) \
55 for_each_if(obj)
56
57struct intel_global_state {
58 struct intel_global_obj *obj;
59 struct intel_atomic_state *state;
60 struct kref ref;
61 bool changed;
62};
63
64struct __intel_global_objs_state {
65 struct intel_global_obj *ptr;
66 struct intel_global_state *state, *old_state, *new_state;
67};
68
69void intel_atomic_global_obj_init(struct drm_i915_private *dev_priv,
70 struct intel_global_obj *obj,
71 struct intel_global_state *state,
72 const struct intel_global_state_funcs *funcs);
73void intel_atomic_global_obj_cleanup(struct drm_i915_private *dev_priv);
74
75struct intel_global_state *
76intel_atomic_get_global_obj_state(struct intel_atomic_state *state,
77 struct intel_global_obj *obj);
78struct intel_global_state *
79intel_atomic_get_old_global_obj_state(struct intel_atomic_state *state,
80 struct intel_global_obj *obj);
81struct intel_global_state *
82intel_atomic_get_new_global_obj_state(struct intel_atomic_state *state,
83 struct intel_global_obj *obj);
84
85void intel_atomic_swap_global_state(struct intel_atomic_state *state);
86void intel_atomic_clear_global_state(struct intel_atomic_state *state);
87int intel_atomic_lock_global_state(struct intel_global_state *obj_state);
88int intel_atomic_serialize_global_state(struct intel_global_state *obj_state);
89
90#endif
91
