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 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)->display.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, old_obj_state, __i) \ 41 for ((__i) = 0; \ 42 (__i) < (__state)->num_global_objs && \ 43 ((obj) = (__state)->global_objs[__i].ptr, \ 44 (old_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_commit; 58 59struct intel_global_state { 60 struct intel_global_obj *obj; 61 struct intel_atomic_state *state; 62 struct intel_global_commit *commit; 63 struct kref ref; 64 bool changed, serialized; 65}; 66 67struct __intel_global_objs_state { 68 struct intel_global_obj *ptr; 69 struct intel_global_state *state, *old_state, *new_state; 70}; 71 72void intel_atomic_global_obj_init(struct drm_i915_private *dev_priv, 73 struct intel_global_obj *obj, 74 struct intel_global_state *state, 75 const struct intel_global_state_funcs *funcs); 76void intel_atomic_global_obj_cleanup(struct drm_i915_private *dev_priv); 77 78struct intel_global_state * 79intel_atomic_get_global_obj_state(struct intel_atomic_state *state, 80 struct intel_global_obj *obj); 81struct intel_global_state * 82intel_atomic_get_old_global_obj_state(struct intel_atomic_state *state, 83 struct intel_global_obj *obj); 84struct intel_global_state * 85intel_atomic_get_new_global_obj_state(struct intel_atomic_state *state, 86 struct intel_global_obj *obj); 87 88void intel_atomic_swap_global_state(struct intel_atomic_state *state); 89void intel_atomic_clear_global_state(struct intel_atomic_state *state); 90int intel_atomic_lock_global_state(struct intel_global_state *obj_state); 91int intel_atomic_serialize_global_state(struct intel_global_state *obj_state); 92 93int intel_atomic_global_state_setup_commit(struct intel_atomic_state *state); 94void intel_atomic_global_state_commit_done(struct intel_atomic_state *state); 95int intel_atomic_global_state_wait_for_dependencies(struct intel_atomic_state *state); 96 97bool intel_atomic_global_state_is_serialized(struct intel_atomic_state *state); 98 99#endif 100