hc
2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f
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/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */
 
#ifndef __INTEL_BW_H__
#define __INTEL_BW_H__
 
#include <drm/drm_atomic.h>
 
#include "intel_display.h"
#include "intel_display_power.h"
#include "intel_global_state.h"
 
struct drm_i915_private;
struct intel_atomic_state;
struct intel_crtc_state;
 
struct intel_dbuf_bw {
   int used_bw[I915_MAX_DBUF_SLICES];
};
 
struct intel_bw_state {
   struct intel_global_state base;
   struct intel_dbuf_bw dbuf_bw[I915_MAX_PIPES];
 
   /*
    * Contains a bit mask, used to determine, whether correspondent
    * pipe allows SAGV or not.
    */
   u8 pipe_sagv_reject;
 
   /*
    * Current QGV points mask, which restricts
    * some particular SAGV states, not to confuse
    * with pipe_sagv_mask.
    */
   u8 qgv_points_mask;
 
   unsigned int data_rate[I915_MAX_PIPES];
   u8 num_active_planes[I915_MAX_PIPES];
 
   /* bitmask of active pipes */
   u8 active_pipes;
 
   int min_cdclk;
};
 
#define to_intel_bw_state(x) container_of((x), struct intel_bw_state, base)
 
struct intel_bw_state *
intel_atomic_get_old_bw_state(struct intel_atomic_state *state);
 
struct intel_bw_state *
intel_atomic_get_new_bw_state(struct intel_atomic_state *state);
 
struct intel_bw_state *
intel_atomic_get_bw_state(struct intel_atomic_state *state);
 
void intel_bw_init_hw(struct drm_i915_private *dev_priv);
int intel_bw_init(struct drm_i915_private *dev_priv);
int intel_bw_atomic_check(struct intel_atomic_state *state);
void intel_bw_crtc_update(struct intel_bw_state *bw_state,
             const struct intel_crtc_state *crtc_state);
int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv,
                 u32 points_mask);
int intel_bw_calc_min_cdclk(struct intel_atomic_state *state);
int skl_bw_calc_min_cdclk(struct intel_atomic_state *state);
 
#endif /* __INTEL_BW_H__ */