LXR linux/drivers/gpu/drm/i915/display/intel

   1/* SPDX-License-Identifier: MIT */
   2/*
   3 * Copyright © 2019 Intel Corporation
   4 */
   5
   6#ifndef __INTEL_BW_H__
   7#define __INTEL_BW_H__
   8
   9#include <drm/drm_atomic.h>
  10
  11#include "i915_drv.h"
  12#include "intel_display.h"
  13
  14struct drm_i915_private;
  15struct intel_atomic_state;
  16struct intel_crtc_state;
  17
  18struct intel_bw_state {
  19        struct drm_private_state base;
  20
  21        unsigned int data_rate[I915_MAX_PIPES];
  22        u8 num_active_planes[I915_MAX_PIPES];
  23};
  24
  25#define to_intel_bw_state(x) container_of((x), struct intel_bw_state, base)
  26
  27static inline struct intel_bw_state *
  28intel_atomic_get_bw_state(struct intel_atomic_state *state)
  29{
  30        struct drm_i915_private *dev_priv = to_i915(state->base.dev);
  31        struct drm_private_state *bw_state;
  32
  33        bw_state = drm_atomic_get_private_obj_state(&state->base,
  34                                                    &dev_priv->bw_obj);
  35        if (IS_ERR(bw_state))
  36                return ERR_CAST(bw_state);
  37
  38        return to_intel_bw_state(bw_state);
  39}
  40
  41void intel_bw_init_hw(struct drm_i915_private *dev_priv);
  42int intel_bw_init(struct drm_i915_private *dev_priv);
  43int intel_bw_atomic_check(struct intel_atomic_state *state);
  44void intel_bw_crtc_update(struct intel_bw_state *bw_state,
  45                          const struct intel_crtc_state *crtc_state);
  46
  47#endif /* __INTEL_BW_H__ */
  48