| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* |
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| 3 | * Copyright © 2020 Intel Corporation |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef __INTEL_GLOBAL_STATE_H__ |
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| 7 | #define __INTEL_GLOBAL_STATE_H__ |
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| 8 | |
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| 9 | #include <linux/kref.h> |
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| 10 | #include <linux/list.h> |
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| 11 | |
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| 12 | struct drm_i915_private; |
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| 13 | struct intel_atomic_state; |
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| 14 | struct intel_global_obj; |
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| 15 | struct intel_global_state; |
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| 16 | |
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| 17 | struct intel_global_state_funcs { |
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| 18 | struct intel_global_state *(*atomic_duplicate_state)(struct intel_global_obj *obj); |
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| 19 | void (*atomic_destroy_state)(struct intel_global_obj *obj, |
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| 20 | struct intel_global_state *state); |
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| 21 | }; |
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| 22 | |
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| 23 | struct intel_global_obj { |
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| 24 | struct list_head head; |
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| 25 | struct intel_global_state *state; |
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| 26 | const struct intel_global_state_funcs *funcs; |
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| 27 | }; |
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| 28 | |
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| 29 | #define intel_for_each_global_obj(obj, dev_priv) \ |
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| 30 | list_for_each_entry(obj, &(dev_priv)->display.global.obj_list, head) |
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| 31 | |
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| 32 | #define for_each_new_global_obj_in_state(__state, obj, new_obj_state, __i) \ |
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| 33 | for ((__i) = 0; \ |
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| 34 | (__i) < (__state)->num_global_objs && \ |
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| 35 | ((obj) = (__state)->global_objs[__i].ptr, \ |
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| 36 | (new_obj_state) = (__state)->global_objs[__i].new_state, 1); \ |
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| 37 | (__i)++) \ |
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| 38 | for_each_if(obj) |
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| 39 | |
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| 40 | #define for_each_old_global_obj_in_state(__state, obj, old_obj_state, __i) \ |
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| 41 | for ((__i) = 0; \ |
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| 42 | (__i) < (__state)->num_global_objs && \ |
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| 43 | ((obj) = (__state)->global_objs[__i].ptr, \ |
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| 44 | (old_obj_state) = (__state)->global_objs[__i].old_state, 1); \ |
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| 45 | (__i)++) \ |
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| 46 | for_each_if(obj) |
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| 47 | |
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| 48 | #define for_each_oldnew_global_obj_in_state(__state, obj, old_obj_state, new_obj_state, __i) \ |
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| 49 | for ((__i) = 0; \ |
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| 50 | (__i) < (__state)->num_global_objs && \ |
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| 51 | ((obj) = (__state)->global_objs[__i].ptr, \ |
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| 52 | (old_obj_state) = (__state)->global_objs[__i].old_state, \ |
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| 53 | (new_obj_state) = (__state)->global_objs[__i].new_state, 1); \ |
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| 54 | (__i)++) \ |
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| 55 | for_each_if(obj) |
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| 56 | |
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| 57 | struct intel_global_commit; |
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| 58 | |
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| 59 | struct intel_global_state { |
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| 60 | struct intel_global_obj *obj; |
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| 61 | struct intel_atomic_state *state; |
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| 62 | struct intel_global_commit *commit; |
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| 63 | struct kref ref; |
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| 64 | bool changed, serialized; |
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| 65 | }; |
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| 66 | |
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| 67 | struct __intel_global_objs_state { |
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| 68 | struct intel_global_obj *ptr; |
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| 69 | struct intel_global_state *state, *old_state, *new_state; |
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| 70 | }; |
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| 71 | |
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| 72 | void intel_atomic_global_obj_init(struct drm_i915_private *dev_priv, |
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| 73 | struct intel_global_obj *obj, |
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| 74 | struct intel_global_state *state, |
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| 75 | const struct intel_global_state_funcs *funcs); |
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| 76 | void intel_atomic_global_obj_cleanup(struct drm_i915_private *dev_priv); |
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| 77 | |
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| 78 | struct intel_global_state * |
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| 79 | intel_atomic_get_global_obj_state(struct intel_atomic_state *state, |
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| 80 | struct intel_global_obj *obj); |
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| 81 | struct intel_global_state * |
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| 82 | intel_atomic_get_old_global_obj_state(struct intel_atomic_state *state, |
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| 83 | struct intel_global_obj *obj); |
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| 84 | struct intel_global_state * |
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| 85 | intel_atomic_get_new_global_obj_state(struct intel_atomic_state *state, |
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| 86 | struct intel_global_obj *obj); |
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| 87 | |
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| 88 | void intel_atomic_swap_global_state(struct intel_atomic_state *state); |
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| 89 | void intel_atomic_clear_global_state(struct intel_atomic_state *state); |
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| 90 | int intel_atomic_lock_global_state(struct intel_global_state *obj_state); |
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| 91 | int intel_atomic_serialize_global_state(struct intel_global_state *obj_state); |
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| 92 | |
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| 93 | int intel_atomic_global_state_setup_commit(struct intel_atomic_state *state); |
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| 94 | void intel_atomic_global_state_commit_done(struct intel_atomic_state *state); |
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| 95 | int intel_atomic_global_state_wait_for_dependencies(struct intel_atomic_state *state); |
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| 96 | |
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| 97 | bool intel_atomic_global_state_is_serialized(struct intel_atomic_state *state); |
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| 98 | |
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| 99 | #endif |
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| 100 | |
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