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drm/amd/pm: support ss metrics read on renoir

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add support to read smart shift apu and dgpu power share
on renoir.

Signed-off-by: Sathishkumar S <sathishkumar.sundararaju@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sathishkumar S 2021-06-01 14:39:36 +05:30 committed by Alex Deucher
parent 3be4dca197
commit 7b32dd0bfd
1 changed files with 34 additions and 0 deletions
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34
drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
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@ -1180,6 +1180,28 @@ static int renoir_get_smu_metrics_data(struct smu_context *smu,
case METRICS_VOLTAGE_VDDSOC:
*value = metrics->Voltage[1];
break;
case METRICS_SS_APU_SHARE:
/* return the percentage of APU power with respect to APU's power limit.
* percentage is reported, this isn't boost value. Smartshift power
* boost/shift is only when the percentage is more than 100.
*/
if (metrics->StapmOriginalLimit > 0)
*value = (metrics->ApuPower * 100) / metrics->StapmOriginalLimit;
else
*value = 0;
break;
case METRICS_SS_DGPU_SHARE:
/* return the percentage of dGPU power with respect to dGPU's power limit.
* percentage is reported, this isn't boost value. Smartshift power
* boost/shift is only when the percentage is more than 100.
*/
if ((metrics->dGpuPower > 0) &&
(metrics->StapmCurrentLimit > metrics->StapmOriginalLimit))
*value = (metrics->dGpuPower * 100) /
(metrics->StapmCurrentLimit - metrics->StapmOriginalLimit);
else
*value = 0;
break;
default:
*value = UINT_MAX;
break;
@ -1251,6 +1273,18 @@ static int renoir_read_sensor(struct smu_context *smu,
(uint32_t *)data);
*size = 4;
break;
case AMDGPU_PP_SENSOR_SS_APU_SHARE:
ret = renoir_get_smu_metrics_data(smu,
METRICS_SS_APU_SHARE,
(uint32_t *)data);
*size = 4;
break;
case AMDGPU_PP_SENSOR_SS_DGPU_SHARE:
ret = renoir_get_smu_metrics_data(smu,
METRICS_SS_DGPU_SHARE,
(uint32_t *)data);
*size = 4;
break;
default:
ret = -EOPNOTSUPP;
break;