SmartShiftMax
Demonstrates how to control AMD SmartShift Max when programming with ADLX.
Command Prompts
| Command Prompt | Description |
|---|---|
| 1 | Display AMD SmartShift Max support. |
| 2 | Display AMD SmartShift Max bias value, bias mode, and bias range. |
| 3 | Set SmartShift Max bias mode to Manual. |
| 4 | Set SmartShift Max bias mode to Auto. |
| 5 | Set SmartShift Max bias value. |
| M/m | Show this menu. |
| Q/q | Quit. |
Sample Path
/Samples/C/PowerTuning/SmartShiftMax
Code
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//
// Copyright (c) 2021 - 2025 Advanced Micro Devices, Inc. All rights reserved.
//
//-------------------------------------------------------------------------------------------------
#include "SDK/ADLXHelper/Windows/C/ADLXHelper.h"
#include "SDK/Include/IPowerTuning.h"
#include "SDK/Include/ISystem1.h"
// Display AMD SmartShift max support
void ShowSmartShiftMaxSupport(IADLXSmartShiftMax* ssm);
// Display current AMD SmartShift max state
void ShowSmartShiftMaxSate(IADLXSmartShiftMax* ssm);
// Set AMD SmartShift max bias mode
void SetSmartShiftMaxBiasMode(IADLXSmartShiftMax* ssm, int index);
// Set AMD SmartShift max bias value
void SetSmartShiftMaxBiasValue(IADLXSmartShiftMax* ssm);
// Main menu
void MainMenu();
// Menu action control
void MenuControl(IADLXSmartShiftMax* ssm);
int main()
{
// Define return code
ADLX_RESULT res = ADLX_FAIL ;
// Initialize ADLX
res = ADLXHelper_Initialize();
if (ADLX_SUCCEEDED (res))
{
// Get system services
IADLXSystem* sys = ADLXHelper_GetSystemServices();
// Get IADLXSystem1 interface
IADLXSystem1* system1 = NULL;
res = sys->pVtbl->QueryInterface(sys, IID_IADLXSystem1(), (void**)(&system1));
if (ADLX_SUCCEEDED (res))
{
// Get power tuning services
IADLXPowerTuningServices* powerTuningServices = NULL;
res = system1->pVtbl->GetPowerTuningServices(system1, &powerTuningServices);
// Get AMD SmartShift Max interface
IADLXSmartShiftMax* ssm = NULL;
res = powerTuningServices->pVtbl->GetSmartShiftMax(powerTuningServices, &ssm);
if (ADLX_SUCCEEDED (res))
{
MainMenu();
MenuControl(ssm);
}
// Release AMD SmartShift Max interface
if (ssm != NULL)
{
ssm->pVtbl->Release(ssm);
ssm = NULL;
}
// Release power tuning services interface
if (powerTuningServices != NULL)
{
powerTuningServices->pVtbl->Release(powerTuningServices);
powerTuningServices = NULL;
}
}
else
{
printf("Failed to get IADLXSystem1 interface\\n");
}
// Release IADLXSystem1 interface
if (system1 != NULL)
{
system1->pVtbl->Release(system1);
system1 = NULL;
}
}
else
{
printf("ADLX initialization failed\\n");
return 0;
}
// Destroy ADLX
res = ADLXHelper_Terminate();
printf("Destroy ADLX res: %d\\n", res);
// Pause to see the print out
system("pause");
return 0;
}
void ShowSmartShiftMaxSupport(IADLXSmartShiftMax* ssm)
{
adlx_bool supported = false;
ssm->pVtbl->IsSupported(ssm, &supported);
printf("\\tIsSupported: %d\\n", supported);
}
void ShowSmartShiftMaxSate(IADLXSmartShiftMax* ssm)
{
ADLX_SSM_BIAS_MODE mode;
ADLX_RESULT ret = ssm->pVtbl->GetBiasMode(ssm, &mode);
if (ADLX_SUCCEEDED (ret))
printf("\\tBias mode: %s\\n", (mode == SSM_BIAS_MANUAL ? "manual" : "auto"));
else
printf("\\tFailed to get bias mode, error code: %d\\n", ret);
adlx_int bias = 0;
ret = ssm->pVtbl->GetBias(ssm, &bias);
if (ADLX_SUCCEEDED (ret))
printf("\\tBias value: %d\\n", bias);
else
printf("\\tFailed to get bias value, error code: %d\\n", ret);
ADLX_IntRange range;
ret = ssm->pVtbl->GetBiasRange(ssm, &range);
if (ADLX_SUCCEEDED (ret))
printf("\\tBias range: [ %d, %d ], step: %d\\n", range.minValue , range.maxValue , range.step );
else
printf("\\tFailed to get bias range, error code: %d\\n", ret);
}
void SetSmartShiftMaxBiasMode(IADLXSmartShiftMax* ssm, int index)
{
ADLX_SSM_BIAS_MODE mode = index == 0 ? SSM_BIAS_MANUAL : SSM_BIAS_AUTO ;
ADLX_RESULT res = ssm->pVtbl->SetBiasMode(ssm, mode);
printf("\\tSet bias mode %s, return code: %d\\n", (mode == SSM_BIAS_MANUAL ? "manual" : "auto"), res);
}
void SetSmartShiftMaxBiasValue(IADLXSmartShiftMax* ssm)
{
adlx_int bias = 0;
ssm->pVtbl->GetBias(ssm, &bias);
ADLX_IntRange range;
ssm->pVtbl->GetBiasRange(ssm, &range);
adlx_int base = (range.maxValue + range.minValue ) / 2;
adlx_int value = bias == base ? base + range.step : base;
ADLX_RESULT res = ssm->pVtbl->SetBias(ssm, value);
printf("\\tSet bias value: %d, return code: %d\\n", value, res);
}
void MainMenu()
{
printf("\\tChoose from the following options:\\n");
printf("\\t->Press 1 to display AMD SmartShift Max support\\n");
printf("\\t->Press 2 to display AMD SmartShift Max bias value, bias mode, and bias range\\n");
printf("\\t->Press 3 to set AMD SmartShift Max bias mode to Manual\\n");
printf("\\t->Press 4 to set AMD SmartShift Max bias mode to Auto\\n");
printf("\\t->Press 5 to set AMD SmartShift Max bias value\\n");
printf("\\t->Press Q/q to terminate the application\\n");
printf("\\t->Press M/m to display main menu options\\n");
}
void MenuControl(IADLXSmartShiftMax* ssm)
{
int num = 0;
while ((num = getchar()) != 'q' && num != 'Q')
{
switch (num)
{
// Display AMD SmartShift max support
case '1':
ShowSmartShiftMaxSupport(ssm);
break;
// Display current AMD SmartShift max state
case '2':
ShowSmartShiftMaxSate(ssm);
break;
// Set AMD SmartShift max bias mode
case '3':
case '4':
SetSmartShiftMaxBiasMode(ssm, num - '3');
break;
// Set AMD SmartShift max bias value
case '5':
SetSmartShiftMaxBiasValue(ssm);
break;
// Display menu options
case 'm':
case 'M':
MainMenu();
break;
default:
break;
}
}
}
