1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vblank.h b/drivers/gpu/drm/i915/display/intel_vblank.h
new file mode 100644
index 000000000000..98d04cacd65f
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_vblank.h
@@ -0,0 +1,53 @@
+/* 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);
+
+int intel_crtc_vblank_length(const struct intel_crtc_state *crtc_state);
+
+#endif /* __INTEL_VBLANK_H__ */