/* SPDX-License-Identifier: MIT */ /* * Copyright © 2022-2023 Intel Corporation */ #ifndef __INTEL_VBLANK_H__ #define __INTEL_VBLANK_H__ #include #include struct drm_crtc; 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; }; 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_to_hw(struct intel_crtc *crtc, int scanline); #endif /* __INTEL_VBLANK_H__ */