On Wed, 2 Feb 2022, Vidya Sagar wrote: > BTW, I see that the ASPM L1SS capability is supported by only two endpoints > viz. KIOXIA's NVMe drive and Realtek's Card reader. None of the root ports > seem to have the support. So, I'm wondering how was it even getting enabled in > the first place earlier? > (OR) > was it the case that L1SS sub-states were never enabled earlier also and the > issue was occurring without having ASPM L1SS enabled? (but with only L0s and > L1 enabled??) I'm not proficient enough in PCIe to be able to be sure of the answers to those- what can/could I do to determine this? > Also, I see that from 'before' and 'after' logs that for both NVMe and Card > reader and their corresponding root ports, none of the ASPM states are enabled > (not even L0s or L1). > Did you set the policy to 'powersupersave' before hibernating the system? Yeah: CONFIG_PCIEASPM_POWER_SUPERSAVE=y My laptop loses ~1.5%/hr in S3; I was trying anything I could to reduce that, if possible. -Kenny -- Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA
