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__ */
143