1fbf756c3SDave Airlie /* SPDX-License-Identifier: MIT */ 2fbf756c3SDave Airlie /* 3fbf756c3SDave Airlie * Copyright © 2020 Intel Corporation 4fbf756c3SDave Airlie */ 5fbf756c3SDave Airlie 6fbf756c3SDave Airlie #ifndef _INTEL_CRTC_H_ 7fbf756c3SDave Airlie #define _INTEL_CRTC_H_ 8fbf756c3SDave Airlie 9fbf756c3SDave Airlie #include <linux/types.h> 10fbf756c3SDave Airlie 1192e9624aSJani Nikula enum i9xx_plane_id; 12fbf756c3SDave Airlie enum pipe; 1309f8fe4cSVille Syrjälä struct drm_display_mode; 14fbf756c3SDave Airlie struct drm_i915_private; 152bbc6fcaSVille Syrjälä struct intel_atomic_state; 16fbf756c3SDave Airlie struct intel_crtc; 17fbf756c3SDave Airlie struct intel_crtc_state; 18fbf756c3SDave Airlie 198637e1c8SVille Syrjälä /* 208637e1c8SVille Syrjälä * FIXME: We should instead only take spinlocks once for the entire update 218637e1c8SVille Syrjälä * instead of once per mmio. 228637e1c8SVille Syrjälä */ 238637e1c8SVille Syrjälä #if IS_ENABLED(CONFIG_PROVE_LOCKING) 248637e1c8SVille Syrjälä #define VBLANK_EVASION_TIME_US 250 258637e1c8SVille Syrjälä #else 268637e1c8SVille Syrjälä #define VBLANK_EVASION_TIME_US 100 278637e1c8SVille Syrjälä #endif 288637e1c8SVille Syrjälä 2909f8fe4cSVille Syrjälä int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, 3009f8fe4cSVille Syrjälä int usecs); 31fbf756c3SDave Airlie u32 intel_crtc_max_vblank_count(const struct intel_crtc_state *crtc_state); 32fbf756c3SDave Airlie int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe); 33fbf756c3SDave Airlie struct intel_crtc_state *intel_crtc_state_alloc(struct intel_crtc *crtc); 34fbf756c3SDave Airlie void intel_crtc_state_reset(struct intel_crtc_state *crtc_state, 35fbf756c3SDave Airlie struct intel_crtc *crtc); 367c53e628SJani Nikula u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc); 377c53e628SJani Nikula void intel_crtc_vblank_on(const struct intel_crtc_state *crtc_state); 387c53e628SJani Nikula void intel_crtc_vblank_off(const struct intel_crtc_state *crtc_state); 39e19dc8c4SVille Syrjälä void intel_pipe_update_start(struct intel_atomic_state *state, 40e19dc8c4SVille Syrjälä struct intel_crtc *crtc); 41e19dc8c4SVille Syrjälä void intel_pipe_update_end(struct intel_atomic_state *state, 42e19dc8c4SVille Syrjälä struct intel_crtc *crtc); 432bbc6fcaSVille Syrjälä void intel_wait_for_vblank_workers(struct intel_atomic_state *state); 447d41745aSVille Syrjälä struct intel_crtc *intel_first_crtc(struct drm_i915_private *i915); 4592e9624aSJani Nikula struct intel_crtc *intel_crtc_for_pipe(struct drm_i915_private *i915, 4692e9624aSJani Nikula enum pipe pipe); 4792e9624aSJani Nikula void intel_wait_for_vblank_if_active(struct drm_i915_private *i915, 4892e9624aSJani Nikula enum pipe pipe); 4992e9624aSJani Nikula void intel_crtc_wait_for_next_vblank(struct intel_crtc *crtc); 50fbf756c3SDave Airlie 51fbf756c3SDave Airlie #endif 52