From 72f3084bff2242f6b0d08571c33f451b3c37f30e Mon Sep 17 00:00:00 2001 From: jsg Date: Fri, 10 Jun 2022 01:09:40 +0000 Subject: [PATCH] drm/amd/pm: update smartshift powerboost calc for smu13 From Sathishkumar S 5005002b2e12e9ac4b58e59354d38a4106906f87 in linux 5.15.y/5.15.46 cdf4c8ec39872a61a58d62f19b4db80f0f7bc586 in mainline linux --- .../drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 62 ++++++++++++++----- 1 file changed, 46 insertions(+), 16 deletions(-) diff --git a/sys/dev/pci/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c b/sys/dev/pci/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c index 0e1a843608e..33bd5430c6d 100644 --- a/sys/dev/pci/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c +++ b/sys/dev/pci/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c @@ -305,6 +305,42 @@ static int yellow_carp_mode2_reset(struct smu_context *smu) return yellow_carp_mode_reset(smu, SMU_RESET_MODE_2); } + +static void yellow_carp_get_ss_power_percent(SmuMetrics_t *metrics, + uint32_t *apu_percent, uint32_t *dgpu_percent) +{ + uint32_t apu_boost = 0; + uint32_t dgpu_boost = 0; + uint16_t apu_limit = 0; + uint16_t dgpu_limit = 0; + uint16_t apu_power = 0; + uint16_t dgpu_power = 0; + + /* APU and dGPU power values are reported in milli Watts + * and STAPM power limits are in Watts */ + apu_power = metrics->ApuPower/1000; + apu_limit = metrics->StapmOpnLimit; + if (apu_power > apu_limit && apu_limit != 0) + apu_boost = ((apu_power - apu_limit) * 100) / apu_limit; + apu_boost = (apu_boost > 100) ? 100 : apu_boost; + + dgpu_power = metrics->dGpuPower/1000; + if (metrics->StapmCurrentLimit > metrics->StapmOpnLimit) + dgpu_limit = metrics->StapmCurrentLimit - metrics->StapmOpnLimit; + if (dgpu_power > dgpu_limit && dgpu_limit != 0) + dgpu_boost = ((dgpu_power - dgpu_limit) * 100) / dgpu_limit; + dgpu_boost = (dgpu_boost > 100) ? 100 : dgpu_boost; + + if (dgpu_boost >= apu_boost) + apu_boost = 0; + else + dgpu_boost = 0; + + *apu_percent = apu_boost; + *dgpu_percent = dgpu_boost; + +} + static int yellow_carp_get_smu_metrics_data(struct smu_context *smu, MetricsMember_t member, uint32_t *value) @@ -313,6 +349,8 @@ static int yellow_carp_get_smu_metrics_data(struct smu_context *smu, SmuMetrics_t *metrics = (SmuMetrics_t *)smu_table->metrics_table; int ret = 0; + uint32_t apu_percent = 0; + uint32_t dgpu_percent = 0; mutex_lock(&smu->metrics_lock); @@ -365,26 +403,18 @@ static int yellow_carp_get_smu_metrics_data(struct smu_context *smu, *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. + /* return the percentage of APU power boost + * with respect to APU's power limit. */ - if (metrics->StapmOpnLimit > 0) - *value = (metrics->ApuPower * 100) / metrics->StapmOpnLimit; - else - *value = 0; + yellow_carp_get_ss_power_percent(metrics, &apu_percent, &dgpu_percent); + *value = apu_percent; 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. + /* return the percentage of dGPU power boost + * with respect to dGPU's power limit. */ - if ((metrics->dGpuPower > 0) && - (metrics->StapmCurrentLimit > metrics->StapmOpnLimit)) - *value = (metrics->dGpuPower * 100) / - (metrics->StapmCurrentLimit - metrics->StapmOpnLimit); - else - *value = 0; + yellow_carp_get_ss_power_percent(metrics, &apu_percent, &dgpu_percent); + *value = dgpu_percent; break; default: *value = UINT_MAX; -- 2.20.1