91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2020 Intel Corporation
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*/
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#ifndef __INTEL_GLOBAL_STATE_H__
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#define __INTEL_GLOBAL_STATE_H__
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#include <linux/kref.h>
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#include <linux/list.h>
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struct drm_i915_private;
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struct intel_atomic_state;
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struct intel_global_obj;
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struct intel_global_state;
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struct intel_global_state_funcs {
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struct intel_global_state *(*atomic_duplicate_state)(struct intel_global_obj *obj);
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void (*atomic_destroy_state)(struct intel_global_obj *obj,
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struct intel_global_state *state);
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};
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struct intel_global_obj {
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struct list_head head;
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struct intel_global_state *state;
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const struct intel_global_state_funcs *funcs;
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};
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#define intel_for_each_global_obj(obj, dev_priv) \
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list_for_each_entry(obj, &(dev_priv)->global_obj_list, head)
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#define for_each_new_global_obj_in_state(__state, obj, new_obj_state, __i) \
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for ((__i) = 0; \
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(__i) < (__state)->num_global_objs && \
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((obj) = (__state)->global_objs[__i].ptr, \
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(new_obj_state) = (__state)->global_objs[__i].new_state, 1); \
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(__i)++) \
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for_each_if(obj)
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#define for_each_old_global_obj_in_state(__state, obj, new_obj_state, __i) \
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for ((__i) = 0; \
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(__i) < (__state)->num_global_objs && \
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((obj) = (__state)->global_objs[__i].ptr, \
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(new_obj_state) = (__state)->global_objs[__i].old_state, 1); \
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(__i)++) \
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for_each_if(obj)
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#define for_each_oldnew_global_obj_in_state(__state, obj, old_obj_state, new_obj_state, __i) \
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for ((__i) = 0; \
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(__i) < (__state)->num_global_objs && \
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((obj) = (__state)->global_objs[__i].ptr, \
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(old_obj_state) = (__state)->global_objs[__i].old_state, \
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(new_obj_state) = (__state)->global_objs[__i].new_state, 1); \
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(__i)++) \
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for_each_if(obj)
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struct intel_global_state {
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struct intel_global_obj *obj;
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struct intel_atomic_state *state;
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struct kref ref;
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bool changed;
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};
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struct __intel_global_objs_state {
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struct intel_global_obj *ptr;
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struct intel_global_state *state, *old_state, *new_state;
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};
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void intel_atomic_global_obj_init(struct drm_i915_private *dev_priv,
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struct intel_global_obj *obj,
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struct intel_global_state *state,
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const struct intel_global_state_funcs *funcs);
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void intel_atomic_global_obj_cleanup(struct drm_i915_private *dev_priv);
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struct intel_global_state *
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intel_atomic_get_global_obj_state(struct intel_atomic_state *state,
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struct intel_global_obj *obj);
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struct intel_global_state *
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intel_atomic_get_old_global_obj_state(struct intel_atomic_state *state,
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struct intel_global_obj *obj);
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struct intel_global_state *
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intel_atomic_get_new_global_obj_state(struct intel_atomic_state *state,
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struct intel_global_obj *obj);
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void intel_atomic_swap_global_state(struct intel_atomic_state *state);
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void intel_atomic_clear_global_state(struct intel_atomic_state *state);
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int intel_atomic_lock_global_state(struct intel_global_state *obj_state);
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int intel_atomic_serialize_global_state(struct intel_global_state *obj_state);
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#endif
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