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
vega20_set_power_limit(struct pp_hwmgr * hwmgr,uint32_t n)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
41 return 0;
42 }
43
vega20_validate_power_level_request(struct pp_hwmgr * hwmgr,uint32_t tdp_percentage_adjustment,uint32_t tdp_absolute_value_adjustment)44 int vega20_validate_power_level_request(struct pp_hwmgr *hwmgr,
45 uint32_t tdp_percentage_adjustment, uint32_t tdp_absolute_value_adjustment)
46 {
47 return (tdp_percentage_adjustment > hwmgr->platform_descriptor.TDPLimit) ? -1 : 0;
48 }
49
vega20_set_overdrive_target_percentage(struct pp_hwmgr * hwmgr,uint32_t adjust_percent)50 static int vega20_set_overdrive_target_percentage(struct pp_hwmgr *hwmgr,
51 uint32_t adjust_percent)
52 {
53 return smum_send_msg_to_smc_with_parameter(hwmgr,
54 PPSMC_MSG_OverDriveSetPercentage, adjust_percent);
55 }
56
vega20_power_control_set_level(struct pp_hwmgr * hwmgr)57 int vega20_power_control_set_level(struct pp_hwmgr *hwmgr)
58 {
59 int adjust_percent, result = 0;
60
61 if (PP_CAP(PHM_PlatformCaps_PowerContainment)) {
62 adjust_percent =
63 hwmgr->platform_descriptor.TDPAdjustmentPolarity ?
64 hwmgr->platform_descriptor.TDPAdjustment :
65 (-1 * hwmgr->platform_descriptor.TDPAdjustment);
66 result = vega20_set_overdrive_target_percentage(hwmgr,
67 (uint32_t)adjust_percent);
68 }
69 return result;
70 }
71
