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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 | /* * Copyright 2017 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * */ #include <linux/types.h> #include <linux/kernel.h> #include <linux/slab.h> #include "pp_psm.h" int psm_init_power_state_table(struct pp_hwmgr *hwmgr) { int result; unsigned int i; unsigned int table_entries; struct pp_power_state *state; int size; if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL) return 0; if (hwmgr->hwmgr_func->get_power_state_size == NULL) return 0; hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr); hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) + sizeof(struct pp_power_state); if (table_entries == 0 || size == 0) { pr_warn("Please check whether power state management is supported on this asic\n"); return 0; } hwmgr->ps = kcalloc(table_entries, size, GFP_KERNEL); if (hwmgr->ps == NULL) return -ENOMEM; hwmgr->request_ps = kzalloc(size, GFP_KERNEL); if (hwmgr->request_ps == NULL) { kfree(hwmgr->ps); hwmgr->ps = NULL; return -ENOMEM; } hwmgr->current_ps = kzalloc(size, GFP_KERNEL); if (hwmgr->current_ps == NULL) { kfree(hwmgr->request_ps); kfree(hwmgr->ps); hwmgr->request_ps = NULL; hwmgr->ps = NULL; return -ENOMEM; } state = hwmgr->ps; for (i = 0; i < table_entries; i++) { result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state); if (result) { kfree(hwmgr->current_ps); kfree(hwmgr->request_ps); kfree(hwmgr->ps); hwmgr->current_ps = NULL; hwmgr->request_ps = NULL; hwmgr->ps = NULL; return -EINVAL; } if (state->classification.flags & PP_StateClassificationFlag_Boot) { hwmgr->boot_ps = state; memcpy(hwmgr->current_ps, state, size); memcpy(hwmgr->request_ps, state, size); } state->id = i + 1; /* assigned unique num for every power state id */ if (state->classification.flags & PP_StateClassificationFlag_Uvd) hwmgr->uvd_ps = state; state = (struct pp_power_state *)((unsigned long)state + size); } return 0; } int psm_fini_power_state_table(struct pp_hwmgr *hwmgr) { if (hwmgr == NULL) return -EINVAL; if (!hwmgr->ps) return 0; kfree(hwmgr->current_ps); kfree(hwmgr->request_ps); kfree(hwmgr->ps); hwmgr->request_ps = NULL; hwmgr->ps = NULL; hwmgr->current_ps = NULL; return 0; } static int psm_get_ui_state(struct pp_hwmgr *hwmgr, enum PP_StateUILabel ui_label, unsigned long *state_id) { struct pp_power_state *state; int table_entries; int i; table_entries = hwmgr->num_ps; state = hwmgr->ps; for (i = 0; i < table_entries; i++) { if (state->classification.ui_label & ui_label) { *state_id = state->id; return 0; } state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size); } return -EINVAL; } static int psm_get_state_by_classification(struct pp_hwmgr *hwmgr, enum PP_StateClassificationFlag flag, unsigned long *state_id) { struct pp_power_state *state; int table_entries; int i; table_entries = hwmgr->num_ps; state = hwmgr->ps; for (i = 0; i < table_entries; i++) { if (state->classification.flags & flag) { *state_id = state->id; return 0; } state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size); } return -EINVAL; } static int psm_set_states(struct pp_hwmgr *hwmgr, unsigned long state_id) { struct pp_power_state *state; int table_entries; int i; table_entries = hwmgr->num_ps; state = hwmgr->ps; for (i = 0; i < table_entries; i++) { if (state->id == state_id) { memcpy(hwmgr->request_ps, state, hwmgr->ps_size); return 0; } state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size); } return -EINVAL; } int psm_set_boot_states(struct pp_hwmgr *hwmgr) { unsigned long state_id; int ret = -EINVAL; if (!hwmgr->ps) return 0; if (!psm_get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot, &state_id)) ret = psm_set_states(hwmgr, state_id); return ret; } int psm_set_performance_states(struct pp_hwmgr *hwmgr) { unsigned long state_id; int ret = -EINVAL; if (!hwmgr->ps) return 0; if (!psm_get_ui_state(hwmgr, PP_StateUILabel_Performance, &state_id)) ret = psm_set_states(hwmgr, state_id); return ret; } int psm_set_user_performance_state(struct pp_hwmgr *hwmgr, enum PP_StateUILabel label_id, struct pp_power_state **state) { int table_entries; int i; if (!hwmgr->ps) return 0; table_entries = hwmgr->num_ps; *state = hwmgr->ps; restart_search: for (i = 0; i < table_entries; i++) { if ((*state)->classification.ui_label & label_id) return 0; *state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size); } switch (label_id) { case PP_StateUILabel_Battery: case PP_StateUILabel_Balanced: label_id = PP_StateUILabel_Performance; goto restart_search; default: break; } return -EINVAL; } static void power_state_management(struct pp_hwmgr *hwmgr, struct pp_power_state *new_ps) { struct pp_power_state *pcurrent; struct pp_power_state *requested; bool equal; if (new_ps != NULL) requested = new_ps; else requested = hwmgr->request_ps; pcurrent = hwmgr->current_ps; phm_apply_state_adjust_rules(hwmgr, requested, pcurrent); if (pcurrent == NULL || (0 != phm_check_states_equal(hwmgr, &pcurrent->hardware, &requested->hardware, &equal))) equal = false; if (!equal || phm_check_smc_update_required_for_display_configuration(hwmgr)) { phm_set_power_state(hwmgr, &pcurrent->hardware, &requested->hardware); memcpy(hwmgr->current_ps, hwmgr->request_ps, hwmgr->ps_size); } } int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip_display_settings, struct pp_power_state *new_ps) { uint32_t index; long workload; if (hwmgr->not_vf) { if (!skip_display_settings) phm_display_configuration_changed(hwmgr); if (hwmgr->ps) power_state_management(hwmgr, new_ps); else /* * for vega12/vega20 which does not support power state manager * DAL clock limits should also be honoured */ phm_apply_clock_adjust_rules(hwmgr); if (!skip_display_settings) phm_notify_smc_display_config_after_ps_adjustment(hwmgr); } if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level)) hwmgr->dpm_level = hwmgr->request_dpm_level; if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) { index = fls(hwmgr->workload_mask); index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0; workload = hwmgr->workload_setting[index]; if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode) hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0); } return 0; } |