1 /* 2 * Copyright 2018 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 24 #include "hwmgr.h" 25 #include "vega20_hwmgr.h" 26 #include "vega20_powertune.h" 27 #include "vega20_smumgr.h" 28 #include "vega20_ppsmc.h" 29 #include "vega20_inc.h" 30 #include "pp_debug.h" 31 32 int vega20_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n) 33 { 34 struct vega20_hwmgr *data = 35 (struct vega20_hwmgr *)(hwmgr->backend); 36 37 if (data->smu_features[GNLD_PPT].enabled) 38 return smum_send_msg_to_smc_with_parameter(hwmgr, 39 PPSMC_MSG_SetPptLimit, n, 40 NULL); 41 42 return 0; 43 } 44 45 int vega20_validate_power_level_request(struct pp_hwmgr *hwmgr, 46 uint32_t tdp_percentage_adjustment, uint32_t tdp_absolute_value_adjustment) 47 { 48 return (tdp_percentage_adjustment > hwmgr->platform_descriptor.TDPLimit) ? -1 : 0; 49 } 50 51 static int vega20_set_overdrive_target_percentage(struct pp_hwmgr *hwmgr, 52 uint32_t adjust_percent) 53 { 54 return smum_send_msg_to_smc_with_parameter(hwmgr, 55 PPSMC_MSG_OverDriveSetPercentage, adjust_percent, 56 NULL); 57 } 58 59 int vega20_power_control_set_level(struct pp_hwmgr *hwmgr) 60 { 61 int adjust_percent, result = 0; 62 63 if (PP_CAP(PHM_PlatformCaps_PowerContainment)) { 64 adjust_percent = 65 hwmgr->platform_descriptor.TDPAdjustmentPolarity ? 66 hwmgr->platform_descriptor.TDPAdjustment : 67 (-1 * hwmgr->platform_descriptor.TDPAdjustment); 68 result = vega20_set_overdrive_target_percentage(hwmgr, 69 (uint32_t)adjust_percent); 70 } 71 return result; 72 } 73