Thanks Luben,
I'll make these revisions and try out Git's patch version setting.
Best,
Ryan
On 9/23/20 7:40 AM, Luben Tuikov wrote:
> On 2020-09-22 11:55, Ryan Taylor wrote:
>> Documents PP_FEATURE_MASK enum.
>> Provides instructions on how to use ppfeaturemasks.
>>
>> v2: Improved enum definitions. Adds kernel command line
>> parameters to ppfeaturemask instructions.
>>
>> Signed-off-by: Ryan Taylor <ryan.taylor@xxxxxxx>
>> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
>> ---
>> drivers/gpu/drm/amd/include/amd_shared.h | 28 ++++++++++++++++++++++++
>> 1 file changed, 28 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
>> index e98c84ef206f..7c84d5beb600 100644
>> --- a/drivers/gpu/drm/amd/include/amd_shared.h
>> +++ b/drivers/gpu/drm/amd/include/amd_shared.h
>> @@ -128,6 +128,34 @@ enum amd_powergating_state {
>> #define AMD_PG_SUPPORT_ATHUB (1 << 16)
>> #define AMD_PG_SUPPORT_JPEG (1 << 17)
>>
>> +/**
>> +* enum PP_FEATURE_MASK - Used to mask power play features.
>> +*
>> +* @PP_SCLK_DPM_MASK: Dynamic adjustment of the system (graphics) clock.
>> +* @PP_MCLK_DPM_MASK: Dynamic adjustment of the memory clock.
>> +* @PP_PCIE_DPM_MASK: Dynamic adjustment of PCIE clocks and lanes.
>> +* @PP_SCLK_DEEP_SLEEP_MASK: System (graphics) clock deep sleep.
>> +* @PP_POWER_CONTAINMENT_MASK: Power containment.
>> +* @PP_UVD_HANDSHAKE_MASK: Unified video decoder handshake.
>> +* @PP_SMC_VOLTAGE_CONTROL_MASK: Dynamic voltage control.
>> +* @PP_VBI_TIME_SUPPORT_MASK: Vertical blank interval support.
>> +* @PP_ULV_MASK: Ultra low voltage.
>> +* @PP_ENABLE_GFX_CG_THRU_SMU: SMU control of GFX engine clockgating.
>> +* @PP_CLOCK_STRETCH_MASK: Clock stretching.
>> +* @PP_OD_FUZZY_FAN_CONTROL_MASK: Overdrive fuzzy fan control.
>> +* @PP_SOCCLK_DPM_MASK: Dynamic adjustment of the SoC clock.
>> +* @PP_DCEFCLK_DPM_MASK: Dynamic adjustment of the Display Controller Engine Fabric clock.
>> +* @PP_OVERDRIVE_MASK: Over- and under-clocking support.
>> +* @PP_GFXOFF_MASK: Dynamic graphics engine power control.
>> +* @PP_ACG_MASK: Adaptive clock generator.
>> +* @PP_STUTTER_MODE: Stutter mode.
>> +* @PP_AVFS_MASK: Adaptive voltage and frequency scaling.
>> +*
>> +* To override these settings on boot, append amdgpu.ppfeaturemask=<mask> to
>> +* the kernel's command line parameters. This is usually done through a system's
>> +* boot loader (E.g. GRUB). If manually loading the driver, pass
>> +* ppfeaturemask=<mask> as a modprobe parameter.
>> +*/
>
> Alignment should be:
>
> /**
> *
> *
> ...
> */
>
> Also, you can use Git's own patch version setting,
> but I've seen here we usually put it in the commit title.
> (Remember, titles do not end with a period.) Something like
>
> Commit title (v2)
>
> I don't mind using either. Not sure what the direction is
> on this one.
>
> Regards,
> Luben
>
>> enum PP_FEATURE_MASK {
>> PP_SCLK_DPM_MASK = 0x1,
>> PP_MCLK_DPM_MASK = 0x2,
>>
>
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