1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef __INTEL_CDCLK_H__ 7 #define __INTEL_CDCLK_H__ 8 9 #include <linux/types.h> 10 11 #include "intel_display.h" 12 13 struct drm_i915_private; 14 struct intel_atomic_state; 15 struct intel_cdclk_state; 16 struct intel_crtc_state; 17 18 struct intel_cdclk_vals { 19 u16 refclk; 20 u32 cdclk; 21 u8 divider; /* CD2X divider * 2 */ 22 u8 ratio; 23 }; 24 25 int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state); 26 void intel_cdclk_init(struct drm_i915_private *i915); 27 void intel_cdclk_uninit(struct drm_i915_private *i915); 28 void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv); 29 void intel_update_max_cdclk(struct drm_i915_private *dev_priv); 30 void intel_update_cdclk(struct drm_i915_private *dev_priv); 31 void intel_update_rawclk(struct drm_i915_private *dev_priv); 32 bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a, 33 const struct intel_cdclk_state *b); 34 void intel_cdclk_swap_state(struct intel_atomic_state *state); 35 void 36 intel_set_cdclk_pre_plane_update(struct drm_i915_private *dev_priv, 37 const struct intel_cdclk_state *old_state, 38 const struct intel_cdclk_state *new_state, 39 enum pipe pipe); 40 void 41 intel_set_cdclk_post_plane_update(struct drm_i915_private *dev_priv, 42 const struct intel_cdclk_state *old_state, 43 const struct intel_cdclk_state *new_state, 44 enum pipe pipe); 45 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state, 46 const char *context); 47 int intel_modeset_calc_cdclk(struct intel_atomic_state *state); 48 49 #endif /* __INTEL_CDCLK_H__ */ 50