powerplay/hwmgr/vega20_powertune.c

0001 /*
0002  * Copyright 2018 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  */
0023
0024 #include "hwmgr.h"
0025 #include "vega20_hwmgr.h"
0026 #include "vega20_powertune.h"
0027 #include "vega20_smumgr.h"
0028 #include "vega20_ppsmc.h"
0029 #include "vega20_inc.h"
0030 #include "pp_debug.h"
0031
0032 int vega20_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n)
0033 {
0034     struct vega20_hwmgr *data =
0035             (struct vega20_hwmgr *)(hwmgr->backend);
0036
0037     if (data->smu_features[GNLD_PPT].enabled)
0038         return smum_send_msg_to_smc_with_parameter(hwmgr,
0039                 PPSMC_MSG_SetPptLimit, n,
0040                 NULL);
0041
0042     return 0;
0043 }
0044
0045 int vega20_validate_power_level_request(struct pp_hwmgr *hwmgr,
0046         uint32_t tdp_percentage_adjustment, uint32_t tdp_absolute_value_adjustment)
0047 {
0048     return (tdp_percentage_adjustment > hwmgr->platform_descriptor.TDPLimit) ? -1 : 0;
0049 }
0050
0051 static int vega20_set_overdrive_target_percentage(struct pp_hwmgr *hwmgr,
0052         uint32_t adjust_percent)
0053 {
0054     return smum_send_msg_to_smc_with_parameter(hwmgr,
0055             PPSMC_MSG_OverDriveSetPercentage, adjust_percent,
0056             NULL);
0057 }
0058
0059 int vega20_power_control_set_level(struct pp_hwmgr *hwmgr)
0060 {
0061     int adjust_percent, result = 0;
0062
0063     if (PP_CAP(PHM_PlatformCaps_PowerContainment)) {
0064         adjust_percent =
0065                 hwmgr->platform_descriptor.TDPAdjustmentPolarity ?
0066                 hwmgr->platform_descriptor.TDPAdjustment :
0067                 (-1 * hwmgr->platform_descriptor.TDPAdjustment);
0068         result = vega20_set_overdrive_target_percentage(hwmgr,
0069                 (uint32_t)adjust_percent);
0070     }
0071     return result;
0072 }