34 lines
989 B
C
34 lines
989 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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#ifndef __INTEL_MODESET_LOCK_H__
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#define __INTEL_MODESET_LOCK_H__
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#include <linux/types.h>
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struct drm_modeset_acquire_ctx;
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struct intel_atomic_state;
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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,
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int *ret);
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bool _intel_modeset_lock_loop(int *ret);
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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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* Note that one must always use "continue" rather than
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* "break" or "return" to handle errors within the
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* intel_modeset_lock_ctx_retry() block.
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*/
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#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
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for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
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_intel_modeset_lock_loop(&(ret)); \
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_intel_modeset_lock_end((ctx), (state), &(ret)))
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#endif /* __INTEL_MODESET_LOCK_H__ */
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