77d8285683
Add a helper to convert our idea of a scanline to the hw's idea of the same scanline (ie. apply crtc->scanline_offset in reverse). We'll need this to tell the DSB do stuff on a specific scanline. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230606191504.18099-17-ville.syrjala@linux.intel.com Reviewed-by: Uma Shankar <uma.shankar@intel.com>
27 lines
887 B
C
27 lines
887 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022-2023 Intel Corporation
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*/
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#ifndef __INTEL_VBLANK_H__
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#define __INTEL_VBLANK_H__
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#include <linux/ktime.h>
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#include <linux/types.h>
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struct drm_crtc;
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struct intel_crtc;
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struct intel_crtc_state;
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u32 i915_get_vblank_counter(struct drm_crtc *crtc);
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u32 g4x_get_vblank_counter(struct drm_crtc *crtc);
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bool intel_crtc_get_vblank_timestamp(struct drm_crtc *crtc, int *max_error,
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ktime_t *vblank_time, bool in_vblank_irq);
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int intel_get_crtc_scanline(struct intel_crtc *crtc);
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void intel_wait_for_pipe_scanline_stopped(struct intel_crtc *crtc);
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void intel_wait_for_pipe_scanline_moving(struct intel_crtc *crtc);
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void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state,
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bool vrr_enable);
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int intel_crtc_scanline_to_hw(struct intel_crtc *crtc, int scanline);
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#endif /* __INTEL_VBLANK_H__ */
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