1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.h b/drivers/gpu/drm/i915/display/intel_crtc.h
new file mode 100644
index 000000000000..07917e8a9ae3
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_crtc.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _INTEL_CRTC_H_
+#define _INTEL_CRTC_H_
+
+#include <linux/types.h>
+
+enum i9xx_plane_id;
+enum pipe;
+struct drm_device;
+struct drm_display_mode;
+struct drm_file;
+struct drm_pending_vblank_event;
+struct intel_atomic_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_display;
+
+/*
+ * FIXME: We should instead only take spinlocks once for the entire update
+ * instead of once per mmio.
+ */
+#if IS_ENABLED(CONFIG_PROVE_LOCKING)
+#define VBLANK_EVASION_TIME_US 250
+#else
+#define VBLANK_EVASION_TIME_US 100
+#endif
+
+int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
+			     int usecs);
+int intel_scanlines_to_usecs(const struct drm_display_mode *adjusted_mode,
+			     int scanlines);
+void intel_crtc_arm_vblank_event(struct intel_crtc_state *crtc_state);
+void intel_crtc_prepare_vblank_event(struct intel_crtc_state *crtc_state,
+				     struct drm_pending_vblank_event **event);
+u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state);
+int intel_crtc_init(struct intel_display *display, enum pipe pipe);
+int intel_crtc_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
+					   struct drm_file *file_priv);
+struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc);
+void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
+			    struct intel_crtc *crtc);
+u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
+void intel_crtc_vblank_on(const struct intel_crtc_state *crtc_state);
+void intel_crtc_vblank_off(const struct intel_crtc_state *crtc_state);
+void intel_pipe_update_start(struct intel_atomic_state *state,
+			     struct intel_crtc *crtc);
+void intel_pipe_update_end(struct intel_atomic_state *state,
+			   struct intel_crtc *crtc);
+void intel_wait_for_vblank_workers(struct intel_atomic_state *state);
+struct intel_crtc *intel_first_crtc(struct intel_display *display);
+struct intel_crtc *intel_crtc_for_pipe(struct intel_display *display,
+				       enum pipe pipe);
+void intel_wait_for_vblank_if_active(struct intel_display *display,
+				     enum pipe pipe);
+void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc);
+
+bool intel_any_crtc_enable_changed(struct intel_atomic_state *state);
+bool intel_crtc_enable_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+bool intel_any_crtc_active_changed(struct intel_atomic_state *state);
+bool intel_crtc_active_changed(const struct intel_crtc_state *old_crtc_state,
+			       const struct intel_crtc_state *new_crtc_state);
+
+unsigned int intel_crtc_bw_num_active_planes(const struct intel_crtc_state *crtc_state);
+unsigned int intel_crtc_bw_data_rate(const struct intel_crtc_state *crtc_state);
+int intel_crtc_bw_min_cdclk(const struct intel_crtc_state *crtc_state);
+
+#endif