drivers/gpu/drm/i915/intel_runtime_pm.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2019 Intel Corporation
   4  */
   5
   6 #ifndef __INTEL_RUNTIME_PM_H__
   7 #define __INTEL_RUNTIME_PM_H__
   8
   9 #include <linux/types.h>
  10
  11 #include "intel_display.h"
  12 #include "intel_wakeref.h"
  13
  14 struct drm_i915_private;
  15 struct drm_printer;
  16 struct intel_encoder;
  17
  18 enum i915_drm_suspend_mode {
  19         I915_DRM_SUSPEND_IDLE,
  20         I915_DRM_SUSPEND_MEM,
  21         I915_DRM_SUSPEND_HIBERNATE,
  22 };
  23
  24 void skl_enable_dc6(struct drm_i915_private *dev_priv);
  25 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
  26 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
  27 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
  28 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
  29
  30 void intel_runtime_pm_init_early(struct drm_i915_private *dev_priv);
  31 int intel_power_domains_init(struct drm_i915_private *);
  32 void intel_power_domains_cleanup(struct drm_i915_private *dev_priv);
  33 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
  34 void intel_power_domains_fini_hw(struct drm_i915_private *dev_priv);
  35 void icl_display_core_init(struct drm_i915_private *dev_priv, bool resume);
  36 void icl_display_core_uninit(struct drm_i915_private *dev_priv);
  37 void intel_power_domains_enable(struct drm_i915_private *dev_priv);
  38 void intel_power_domains_disable(struct drm_i915_private *dev_priv);
  39 void intel_power_domains_suspend(struct drm_i915_private *dev_priv,
  40                                  enum i915_drm_suspend_mode);
  41 void intel_power_domains_resume(struct drm_i915_private *dev_priv);
  42 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
  43 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
  44 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
  45 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
  46 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
  47 void intel_runtime_pm_disable(struct drm_i915_private *dev_priv);
  48 void intel_runtime_pm_cleanup(struct drm_i915_private *dev_priv);
  49
  50 const char *
  51 intel_display_power_domain_str(enum intel_display_power_domain domain);
  52
  53 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
  54                                     enum intel_display_power_domain domain);
  55 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
  56                                       enum intel_display_power_domain domain);
  57 intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv,
  58                                         enum intel_display_power_domain domain);
  59 intel_wakeref_t
  60 intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
  61                                    enum intel_display_power_domain domain);
  62 void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv,
  63                                        enum intel_display_power_domain domain);
  64 void __intel_display_power_put_async(struct drm_i915_private *i915,
  65                                      enum intel_display_power_domain domain,
  66                                      intel_wakeref_t wakeref);
  67 void intel_display_power_flush_work(struct drm_i915_private *i915);
  68 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
  69 void intel_display_power_put(struct drm_i915_private *dev_priv,
  70                              enum intel_display_power_domain domain,
  71                              intel_wakeref_t wakeref);
  72 static inline void
  73 intel_display_power_put_async(struct drm_i915_private *i915,
  74                               enum intel_display_power_domain domain,
  75                               intel_wakeref_t wakeref)
  76 {
  77         __intel_display_power_put_async(i915, domain, wakeref);
  78 }
  79 #else
  80 static inline void
  81 intel_display_power_put(struct drm_i915_private *i915,
  82                         enum intel_display_power_domain domain,
  83                         intel_wakeref_t wakeref)
  84 {
  85         intel_display_power_put_unchecked(i915, domain);
  86 }
  87
  88 static inline void
  89 intel_display_power_put_async(struct drm_i915_private *i915,
  90                               enum intel_display_power_domain domain,
  91                               intel_wakeref_t wakeref)
  92 {
  93         __intel_display_power_put_async(i915, domain, -1);
  94 }
  95 #endif
  96
  97 #define with_intel_display_power(i915, domain, wf) \
  98         for ((wf) = intel_display_power_get((i915), (domain)); (wf); \
  99              intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0)
 100
 101 void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
 102                             u8 req_slices);
 103
 104 intel_wakeref_t intel_runtime_pm_get(struct drm_i915_private *i915);
 105 intel_wakeref_t intel_runtime_pm_get_if_in_use(struct drm_i915_private *i915);
 106 intel_wakeref_t intel_runtime_pm_get_noresume(struct drm_i915_private *i915);
 107
 108 #define with_intel_runtime_pm(i915, wf) \
 109         for ((wf) = intel_runtime_pm_get(i915); (wf); \
 110              intel_runtime_pm_put((i915), (wf)), (wf) = 0)
 111
 112 #define with_intel_runtime_pm_if_in_use(i915, wf) \
 113         for ((wf) = intel_runtime_pm_get_if_in_use(i915); (wf); \
 114              intel_runtime_pm_put((i915), (wf)), (wf) = 0)
 115
 116 void intel_runtime_pm_put_unchecked(struct drm_i915_private *i915);
 117 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
 118 void intel_runtime_pm_put(struct drm_i915_private *i915, intel_wakeref_t wref);
 119 #else
 120 static inline void
 121 intel_runtime_pm_put(struct drm_i915_private *i915, intel_wakeref_t wref)
 122 {
 123         intel_runtime_pm_put_unchecked(i915);
 124 }
 125 #endif
 126
 127 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
 128 void print_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
 129                                     struct drm_printer *p);
 130 #else
 131 static inline void print_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
 132                                                   struct drm_printer *p)
 133 {
 134 }
 135 #endif
 136
 137 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
 138                              bool override, unsigned int mask);
 139 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
 140                           enum dpio_channel ch, bool override);
 141
 142 #endif /* __INTEL_RUNTIME_PM_H__ */