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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2022-2023 Intel Corporation
*/
#ifndef __INTEL_VBLANK_H__
#define __INTEL_VBLANK_H__
#include <linux/ktime.h>
#include <linux/types.h>
struct drm_crtc;
struct drm_display_mode;
struct intel_atomic_state;
struct intel_crtc;
struct intel_crtc_state;
struct intel_vblank_evade_ctx {
struct intel_crtc *crtc;
int min, max, vblank_start;
bool need_vlv_dsi_wa;
};
int intel_mode_vdisplay(const struct drm_display_mode *mode);
int intel_mode_vblank_start(const struct drm_display_mode *mode);
int intel_mode_vblank_end(const struct drm_display_mode *mode);
int intel_mode_vtotal(const struct drm_display_mode *mode);
int intel_mode_vblank_delay(const struct drm_display_mode *mode);
void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state,
const struct intel_crtc_state *new_crtc_state,
struct intel_vblank_evade_ctx *evade);
/* must be called with vblank interrupt already enabled! */
int intel_vblank_evade(struct intel_vblank_evade_ctx *evade);
u32 i915_get_vblank_counter(struct drm_crtc *crtc);
u32 g4x_get_vblank_counter(struct drm_crtc *crtc);
bool intel_crtc_get_vblank_timestamp(struct drm_crtc *crtc, int *max_error,
ktime_t *vblank_time, bool in_vblank_irq);
int intel_get_crtc_scanline(struct intel_crtc *crtc);
void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc);
void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc);
void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state,
bool vrr_enable);
int intel_crtc_scanline_offset(const struct intel_crtc_state *crtc_state);
const struct intel_crtc_state *
intel_pre_commit_crtc_state(struct intel_atomic_state *state,
struct intel_crtc *crtc);
#endif /* __INTEL_VBLANK_H__ */
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