1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef __INTEL_DISPLAY_POWER_H__ 7 #define __INTEL_DISPLAY_POWER_H__ 8 9 #include "intel_wakeref.h" 10 11 enum aux_ch; 12 enum dpio_channel; 13 enum dpio_phy; 14 enum i915_drm_suspend_mode; 15 enum port; 16 struct drm_i915_private; 17 struct i915_power_well; 18 struct intel_encoder; 19 20 /* 21 * Keep the pipe, transcoder, port (DDI_LANES,DDI_IO,AUX) domain instances 22 * consecutive, so that the pipe,transcoder,port -> power domain macros 23 * work correctly. 24 */ 25 enum intel_display_power_domain { 26 POWER_DOMAIN_DISPLAY_CORE, 27 POWER_DOMAIN_PIPE_A, 28 POWER_DOMAIN_PIPE_B, 29 POWER_DOMAIN_PIPE_C, 30 POWER_DOMAIN_PIPE_D, 31 POWER_DOMAIN_PIPE_PANEL_FITTER_A, 32 POWER_DOMAIN_PIPE_PANEL_FITTER_B, 33 POWER_DOMAIN_PIPE_PANEL_FITTER_C, 34 POWER_DOMAIN_PIPE_PANEL_FITTER_D, 35 POWER_DOMAIN_TRANSCODER_A, 36 POWER_DOMAIN_TRANSCODER_B, 37 POWER_DOMAIN_TRANSCODER_C, 38 POWER_DOMAIN_TRANSCODER_D, 39 POWER_DOMAIN_TRANSCODER_EDP, 40 POWER_DOMAIN_TRANSCODER_DSI_A, 41 POWER_DOMAIN_TRANSCODER_DSI_C, 42 43 /* VDSC/joining for eDP/DSI transcoder (ICL) or pipe A (TGL) */ 44 POWER_DOMAIN_TRANSCODER_VDSC_PW2, 45 46 POWER_DOMAIN_PORT_DDI_LANES_A, 47 POWER_DOMAIN_PORT_DDI_LANES_B, 48 POWER_DOMAIN_PORT_DDI_LANES_C, 49 POWER_DOMAIN_PORT_DDI_LANES_D, 50 POWER_DOMAIN_PORT_DDI_LANES_E, 51 POWER_DOMAIN_PORT_DDI_LANES_F, 52 53 POWER_DOMAIN_PORT_DDI_LANES_TC1, 54 POWER_DOMAIN_PORT_DDI_LANES_TC2, 55 POWER_DOMAIN_PORT_DDI_LANES_TC3, 56 POWER_DOMAIN_PORT_DDI_LANES_TC4, 57 POWER_DOMAIN_PORT_DDI_LANES_TC5, 58 POWER_DOMAIN_PORT_DDI_LANES_TC6, 59 60 POWER_DOMAIN_PORT_DDI_IO_A, 61 POWER_DOMAIN_PORT_DDI_IO_B, 62 POWER_DOMAIN_PORT_DDI_IO_C, 63 POWER_DOMAIN_PORT_DDI_IO_D, 64 POWER_DOMAIN_PORT_DDI_IO_E, 65 POWER_DOMAIN_PORT_DDI_IO_F, 66 67 POWER_DOMAIN_PORT_DDI_IO_TC1, 68 POWER_DOMAIN_PORT_DDI_IO_TC2, 69 POWER_DOMAIN_PORT_DDI_IO_TC3, 70 POWER_DOMAIN_PORT_DDI_IO_TC4, 71 POWER_DOMAIN_PORT_DDI_IO_TC5, 72 POWER_DOMAIN_PORT_DDI_IO_TC6, 73 74 POWER_DOMAIN_PORT_DSI, 75 POWER_DOMAIN_PORT_CRT, 76 POWER_DOMAIN_PORT_OTHER, 77 POWER_DOMAIN_VGA, 78 POWER_DOMAIN_AUDIO_MMIO, 79 POWER_DOMAIN_AUDIO_PLAYBACK, 80 81 POWER_DOMAIN_AUX_IO_A, 82 POWER_DOMAIN_AUX_IO_B, 83 POWER_DOMAIN_AUX_IO_C, 84 POWER_DOMAIN_AUX_IO_D, 85 POWER_DOMAIN_AUX_IO_E, 86 POWER_DOMAIN_AUX_IO_F, 87 88 POWER_DOMAIN_AUX_A, 89 POWER_DOMAIN_AUX_B, 90 POWER_DOMAIN_AUX_C, 91 POWER_DOMAIN_AUX_D, 92 POWER_DOMAIN_AUX_E, 93 POWER_DOMAIN_AUX_F, 94 95 POWER_DOMAIN_AUX_USBC1, 96 POWER_DOMAIN_AUX_USBC2, 97 POWER_DOMAIN_AUX_USBC3, 98 POWER_DOMAIN_AUX_USBC4, 99 POWER_DOMAIN_AUX_USBC5, 100 POWER_DOMAIN_AUX_USBC6, 101 102 POWER_DOMAIN_AUX_TBT1, 103 POWER_DOMAIN_AUX_TBT2, 104 POWER_DOMAIN_AUX_TBT3, 105 POWER_DOMAIN_AUX_TBT4, 106 POWER_DOMAIN_AUX_TBT5, 107 POWER_DOMAIN_AUX_TBT6, 108 109 POWER_DOMAIN_GMBUS, 110 POWER_DOMAIN_MODESET, 111 POWER_DOMAIN_GT_IRQ, 112 POWER_DOMAIN_DC_OFF, 113 POWER_DOMAIN_TC_COLD_OFF, 114 POWER_DOMAIN_INIT, 115 116 POWER_DOMAIN_NUM, 117 POWER_DOMAIN_INVALID = POWER_DOMAIN_NUM, 118 }; 119 120 #define POWER_DOMAIN_PIPE(pipe) ((pipe) + POWER_DOMAIN_PIPE_A) 121 #define POWER_DOMAIN_PIPE_PANEL_FITTER(pipe) \ 122 ((pipe) + POWER_DOMAIN_PIPE_PANEL_FITTER_A) 123 #define POWER_DOMAIN_TRANSCODER(tran) \ 124 ((tran) == TRANSCODER_EDP ? POWER_DOMAIN_TRANSCODER_EDP : \ 125 (tran) + POWER_DOMAIN_TRANSCODER_A) 126 127 struct intel_power_domain_mask { 128 DECLARE_BITMAP(bits, POWER_DOMAIN_NUM); 129 }; 130 131 struct i915_power_domains { 132 /* 133 * Power wells needed for initialization at driver init and suspend 134 * time are on. They are kept on until after the first modeset. 135 */ 136 bool initializing; 137 bool display_core_suspended; 138 int power_well_count; 139 140 u32 dc_state; 141 u32 target_dc_state; 142 u32 allowed_dc_mask; 143 144 intel_wakeref_t init_wakeref; 145 intel_wakeref_t disable_wakeref; 146 147 struct mutex lock; 148 int domain_use_count[POWER_DOMAIN_NUM]; 149 150 struct delayed_work async_put_work; 151 intel_wakeref_t async_put_wakeref; 152 struct intel_power_domain_mask async_put_domains[2]; 153 154 struct i915_power_well *power_wells; 155 }; 156 157 struct intel_display_power_domain_set { 158 struct intel_power_domain_mask mask; 159 #ifdef CONFIG_DRM_I915_DEBUG_RUNTIME_PM 160 intel_wakeref_t wakerefs[POWER_DOMAIN_NUM]; 161 #endif 162 }; 163 164 #define for_each_power_domain(__domain, __mask) \ 165 for ((__domain) = 0; (__domain) < POWER_DOMAIN_NUM; (__domain)++) \ 166 for_each_if(test_bit((__domain), (__mask)->bits)) 167 168 int intel_power_domains_init(struct drm_i915_private *dev_priv); 169 void intel_power_domains_cleanup(struct drm_i915_private *dev_priv); 170 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume); 171 void intel_power_domains_driver_remove(struct drm_i915_private *dev_priv); 172 void intel_power_domains_enable(struct drm_i915_private *dev_priv); 173 void intel_power_domains_disable(struct drm_i915_private *dev_priv); 174 void intel_power_domains_suspend(struct drm_i915_private *dev_priv, 175 enum i915_drm_suspend_mode); 176 void intel_power_domains_resume(struct drm_i915_private *dev_priv); 177 void intel_power_domains_sanitize_state(struct drm_i915_private *dev_priv); 178 179 void intel_display_power_suspend_late(struct drm_i915_private *i915); 180 void intel_display_power_resume_early(struct drm_i915_private *i915); 181 void intel_display_power_suspend(struct drm_i915_private *i915); 182 void intel_display_power_resume(struct drm_i915_private *i915); 183 void intel_display_power_set_target_dc_state(struct drm_i915_private *dev_priv, 184 u32 state); 185 186 const char * 187 intel_display_power_domain_str(enum intel_display_power_domain domain); 188 189 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv, 190 enum intel_display_power_domain domain); 191 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv, 192 enum intel_display_power_domain domain); 193 intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv, 194 enum intel_display_power_domain domain); 195 intel_wakeref_t 196 intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv, 197 enum intel_display_power_domain domain); 198 void __intel_display_power_put_async(struct drm_i915_private *i915, 199 enum intel_display_power_domain domain, 200 intel_wakeref_t wakeref); 201 void intel_display_power_flush_work(struct drm_i915_private *i915); 202 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM) 203 void intel_display_power_put(struct drm_i915_private *dev_priv, 204 enum intel_display_power_domain domain, 205 intel_wakeref_t wakeref); 206 static inline void 207 intel_display_power_put_async(struct drm_i915_private *i915, 208 enum intel_display_power_domain domain, 209 intel_wakeref_t wakeref) 210 { 211 __intel_display_power_put_async(i915, domain, wakeref); 212 } 213 #else 214 void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv, 215 enum intel_display_power_domain domain); 216 217 static inline void 218 intel_display_power_put(struct drm_i915_private *i915, 219 enum intel_display_power_domain domain, 220 intel_wakeref_t wakeref) 221 { 222 intel_display_power_put_unchecked(i915, domain); 223 } 224 225 static inline void 226 intel_display_power_put_async(struct drm_i915_private *i915, 227 enum intel_display_power_domain domain, 228 intel_wakeref_t wakeref) 229 { 230 __intel_display_power_put_async(i915, domain, -1); 231 } 232 #endif 233 234 void 235 intel_display_power_get_in_set(struct drm_i915_private *i915, 236 struct intel_display_power_domain_set *power_domain_set, 237 enum intel_display_power_domain domain); 238 239 bool 240 intel_display_power_get_in_set_if_enabled(struct drm_i915_private *i915, 241 struct intel_display_power_domain_set *power_domain_set, 242 enum intel_display_power_domain domain); 243 244 void 245 intel_display_power_put_mask_in_set(struct drm_i915_private *i915, 246 struct intel_display_power_domain_set *power_domain_set, 247 struct intel_power_domain_mask *mask); 248 249 static inline void 250 intel_display_power_put_all_in_set(struct drm_i915_private *i915, 251 struct intel_display_power_domain_set *power_domain_set) 252 { 253 intel_display_power_put_mask_in_set(i915, power_domain_set, &power_domain_set->mask); 254 } 255 256 void intel_display_power_debug(struct drm_i915_private *i915, struct seq_file *m); 257 258 enum intel_display_power_domain 259 intel_display_power_ddi_lanes_domain(struct drm_i915_private *i915, enum port port); 260 enum intel_display_power_domain 261 intel_display_power_ddi_io_domain(struct drm_i915_private *i915, enum port port); 262 enum intel_display_power_domain 263 intel_display_power_aux_io_domain(struct drm_i915_private *i915, enum aux_ch aux_ch); 264 enum intel_display_power_domain 265 intel_display_power_legacy_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch); 266 enum intel_display_power_domain 267 intel_display_power_tbt_aux_domain(struct drm_i915_private *i915, enum aux_ch aux_ch); 268 269 /* 270 * FIXME: We should probably switch this to a 0-based scheme to be consistent 271 * with how we now name/number DBUF_CTL instances. 272 */ 273 enum dbuf_slice { 274 DBUF_S1, 275 DBUF_S2, 276 DBUF_S3, 277 DBUF_S4, 278 I915_MAX_DBUF_SLICES 279 }; 280 281 void gen9_dbuf_slices_update(struct drm_i915_private *dev_priv, 282 u8 req_slices); 283 284 #define with_intel_display_power(i915, domain, wf) \ 285 for ((wf) = intel_display_power_get((i915), (domain)); (wf); \ 286 intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0) 287 288 #define with_intel_display_power_if_enabled(i915, domain, wf) \ 289 for ((wf) = intel_display_power_get_if_enabled((i915), (domain)); (wf); \ 290 intel_display_power_put_async((i915), (domain), (wf)), (wf) = 0) 291 292 #endif /* __INTEL_DISPLAY_POWER_H__ */ 293