drivers/gpu/drm/i915/display/intel_cdclk.h

   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__ */