linux/drivers/gpu/drm/i915/intel_pm.h
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   1/* SPDX-License-Identifier: MIT */
   2/*
   3 * Copyright © 2019 Intel Corporation
   4 */
   5
   6#ifndef __INTEL_PM_H__
   7#define __INTEL_PM_H__
   8
   9#include <linux/types.h>
  10
  11#include "display/intel_bw.h"
  12#include "display/intel_display.h"
  13#include "display/intel_global_state.h"
  14
  15#include "i915_drv.h"
  16#include "i915_reg.h"
  17
  18struct drm_device;
  19struct drm_i915_private;
  20struct i915_request;
  21struct intel_atomic_state;
  22struct intel_crtc;
  23struct intel_crtc_state;
  24struct intel_plane;
  25struct skl_ddb_entry;
  26struct skl_pipe_wm;
  27struct skl_wm_level;
  28
  29void intel_init_clock_gating(struct drm_i915_private *dev_priv);
  30void intel_suspend_hw(struct drm_i915_private *dev_priv);
  31int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
  32void intel_update_watermarks(struct intel_crtc *crtc);
  33void intel_init_pm(struct drm_i915_private *dev_priv);
  34void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
  35void intel_pm_setup(struct drm_i915_private *dev_priv);
  36void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
  37void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
  38void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
  39void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
  40u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *dev_priv);
  41void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
  42                               struct skl_ddb_entry *ddb_y,
  43                               struct skl_ddb_entry *ddb_uv);
  44void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
  45u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
  46                            const struct skl_ddb_entry *entry);
  47void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
  48                              struct skl_pipe_wm *out);
  49void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
  50void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
  51bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
  52                           const struct intel_bw_state *bw_state);
  53void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
  54void intel_sagv_post_plane_update(struct intel_atomic_state *state);
  55const struct skl_wm_level *skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
  56                                              enum plane_id plane_id,
  57                                              int level);
  58const struct skl_wm_level *skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
  59                                              enum plane_id plane_id);
  60bool skl_wm_level_equals(const struct skl_wm_level *l1,
  61                         const struct skl_wm_level *l2);
  62bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
  63                                 const struct skl_ddb_entry *entries,
  64                                 int num_entries, int ignore_idx);
  65void skl_write_plane_wm(struct intel_plane *plane,
  66                        const struct intel_crtc_state *crtc_state);
  67void skl_write_cursor_wm(struct intel_plane *plane,
  68                         const struct intel_crtc_state *crtc_state);
  69bool ilk_disable_lp_wm(struct drm_i915_private *dev_priv);
  70void intel_init_ipc(struct drm_i915_private *dev_priv);
  71void intel_enable_ipc(struct drm_i915_private *dev_priv);
  72
  73bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv, bool enable);
  74
  75struct intel_dbuf_state {
  76        struct intel_global_state base;
  77
  78        struct skl_ddb_entry ddb[I915_MAX_PIPES];
  79        unsigned int weight[I915_MAX_PIPES];
  80        u8 slices[I915_MAX_PIPES];
  81        u8 enabled_slices;
  82        u8 active_pipes;
  83        bool joined_mbus;
  84};
  85
  86struct intel_dbuf_state *
  87intel_atomic_get_dbuf_state(struct intel_atomic_state *state);
  88
  89#define to_intel_dbuf_state(x) container_of((x), struct intel_dbuf_state, base)
  90#define intel_atomic_get_old_dbuf_state(state) \
  91        to_intel_dbuf_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))
  92#define intel_atomic_get_new_dbuf_state(state) \
  93        to_intel_dbuf_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))
  94
  95int intel_dbuf_init(struct drm_i915_private *dev_priv);
  96void intel_dbuf_pre_plane_update(struct intel_atomic_state *state);
  97void intel_dbuf_post_plane_update(struct intel_atomic_state *state);
  98
  99#endif /* __INTEL_PM_H__ */
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