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