diff options
Diffstat (limited to 'arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c')
| -rw-r--r-- | arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c b/arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c index 425ad8dcf4e0..0f25159a15f6 100644 --- a/arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c +++ b/arch/arm/mach-tegra/nvrm/core/common/nvrm_power_dfs.c @@ -1109,6 +1109,10 @@ DfsGetTargetFrequencies( pDomainSampler->NrtStarveBoostKHz = (pDomainSampler->NrtStarveBoostKHz * ((0x1 << BOOST_FRACTION_BITS) - pDomainParam->NrtStarveParam.BoostDecKoef)) >> BOOST_FRACTION_BITS; + + if (pDomainSampler->NrtStarveBoostKHz < + pDomainParam->NrtStarveParam.BoostStepKHz) + pDomainSampler->NrtStarveBoostKHz = 0; // cut tail } } else if (pDomainSampler->NrtSampleCounter < pDomainParam->MinNrtSamples) @@ -1206,10 +1210,9 @@ DfsGetTargetFrequencies( /* * Determine if low corner is hit in this domain - clear hit indicator - * if new target domain frequency is above low limit (with hysteresis - * equal to the 1st NRT starvation step). For platform with dedicated - * CPU partition reduce activity margin by half when there is no busy - * or starvation requirements + * if new target domain frequency is above low limit (with hysteresis) + * For platform with dedicated CPU partition do not include activity + * margin when there is no busy or starvation requirements */ if (NvRmPrivIsCpuRailDedicated(pDfs->hRm) && (DomainBusyKHz <= LowCornerDomainKHz) && @@ -1218,7 +1221,7 @@ DfsGetTargetFrequencies( // Multiplying threshold has the same effect as dividing target // to reduce margin LowCornerDomainKHz += - (LowCornerDomainKHz >> (pDomainParam->RelAdjustBits + 1)); + (LowCornerDomainKHz >> pDomainParam->RelAdjustBits); } if ( ((*pDomainKHz) > (LowCornerDomainKHz + pDomainParam->NrtStarveParam.BoostStepKHz)) |