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c98ee89736
This patch is to add the fine grain tuning function for vangogh.
This function uses the pp_od_clk_voltage sysfs file to configure the min
and max value of gfx clock frequency or restore the default value.
Command guide:
echo "s level value" > pp_od_clk_voltage
"s" - set the sclk frequency
"level" - 0 or 1, "0" represents the min value, "1" represents
the max value
"value" - the target value of sclk frequency, it should be
limited in the safe range
echo "r" > pp_od_clk_voltage
"r" - reset the sclk frequency, restore the default value
instantly
echo "c" > pp_od_clk_voltage
"c" - commit the min and max value of sclk frequency to the system
only after the commit command, the setting target values by "s" command
will take effect.
Example:
1)check the default sclk frequency
$ cat pp_od_clk_voltage
OD_SCLK:
0: 200Mhz
1: 1400Mhz
OD_RANGE:
SCLK: 200MHz 1400MHz
2)use "s" -- set command to configure the min or max sclk frequency
$ echo "s 0 600" > pp_od_clk_voltage
$ echo "s 1 1000" > pp_od_clk_voltage
$ echo "c" > pp_od_clk_voltage
$ cat pp_od_clk_voltage
OD_SCLK:
0: 600Mhz
1: 1000Mhz
OD_RANGE:
SCLK: 200MHz 1400MHz
3)use "r" -- reset command to restore the min and max sclk frequency
$ echo "r" > pp_od_clk_voltage
$ cat pp_od_clk_voltage
OD_SCLK:
0: 200Mhz
1: 1400Mhz
OD_RANGE:
SCLK: 200MHz 1400MHz
Signed-off-by: Xiaojian Du <Xiaojian.Du@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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| .. | ||
| vega12 | ||
| amd_powerplay.h | ||
| amdgpu_dpm.h | ||
| amdgpu_pm.h | ||
| amdgpu_smu.h | ||
| arcturus_ppsmc.h | ||
| cz_ppsmc.h | ||
| fiji_ppsmc.h | ||
| hardwaremanager.h | ||
| hwmgr.h | ||
| polaris10_pwrvirus.h | ||
| power_state.h | ||
| pp_debug.h | ||
| pp_endian.h | ||
| pp_thermal.h | ||
| ppinterrupt.h | ||
| rv_ppsmc.h | ||
| smu7.h | ||
| smu7_common.h | ||
| smu7_discrete.h | ||
| smu7_fusion.h | ||
| smu7_ppsmc.h | ||
| smu8.h | ||
| smu8_fusion.h | ||
| smu9.h | ||
| smu9_driver_if.h | ||
| smu10.h | ||
| smu10_driver_if.h | ||
| smu11_driver_if.h | ||
| smu11_driver_if_arcturus.h | ||
| smu11_driver_if_navi10.h | ||
| smu11_driver_if_sienna_cichlid.h | ||
| smu11_driver_if_vangogh.h | ||
| smu12_driver_if.h | ||
| smu71.h | ||
| smu71_discrete.h | ||
| smu72.h | ||
| smu72_discrete.h | ||
| smu73.h | ||
| smu73_discrete.h | ||
| smu74.h | ||
| smu74_discrete.h | ||
| smu75.h | ||
| smu75_discrete.h | ||
| smu_11_0_cdr_table.h | ||
| smu_types.h | ||
| smu_ucode_xfer_cz.h | ||
| smu_ucode_xfer_vi.h | ||
| smu_v11_0.h | ||
| smu_v11_0_7_ppsmc.h | ||
| smu_v11_0_7_pptable.h | ||
| smu_v11_0_ppsmc.h | ||
| smu_v11_0_pptable.h | ||
| smu_v11_5_pmfw.h | ||
| smu_v11_5_ppsmc.h | ||
| smu_v12_0.h | ||
| smu_v12_0_ppsmc.h | ||
| smumgr.h | ||
| tonga_ppsmc.h | ||
| vega10_ppsmc.h | ||
| vega12_ppsmc.h | ||
| vega20_ppsmc.h | ||