51 lines
922 B
C
51 lines
922 B
C
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// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#include <drm/drm_modeset_lock.h>
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#include "intel_display_types.h"
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#include "intel_modeset_lock.h"
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void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
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struct intel_atomic_state *state,
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unsigned int flags, int *ret)
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{
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drm_modeset_acquire_init(ctx, flags);
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if (state)
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state->base.acquire_ctx = ctx;
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*ret = -EDEADLK;
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}
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bool _intel_modeset_lock_loop(int *ret)
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{
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if (*ret == -EDEADLK) {
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*ret = 0;
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return true;
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}
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return false;
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}
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void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
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struct intel_atomic_state *state,
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int *ret)
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{
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if (*ret == -EDEADLK) {
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if (state)
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drm_atomic_state_clear(&state->base);
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*ret = drm_modeset_backoff(ctx);
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if (*ret == 0) {
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*ret = -EDEADLK;
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return;
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}
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}
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drm_modeset_drop_locks(ctx);
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drm_modeset_acquire_fini(ctx);
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}
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