Valentin

Finally solved the long-standing issue with Linux on Apple Silicon, power management Neo during suspend now draws **0.05 W** on average, just like macOS. It cuts off the power rail to SoC while keeping DRAM in self-refresh loop and still supports wake over LAN/USB/BT, so it works well in docked setups too And now it's finally possible to just let your Mac running Linux sleep for days without losing battery (well, negligible amounts)! Most of the time was spent covering all sorts of edge cases with USB / weird coprocessor gotchas across suspend As expected, it wasn't too big like the GPU work was (just difficult to get right, and touches a fairly big amount of subsystems to implement suspend/wake in each) - needed me to sit down for a while and actually get it done... it took a lot of tiny details to get here, but I've finally developed a nearly complete understanding of how it works. 2 days into this rabbit hole and the result is, deep sleep works on Neo and expectedly super similar across M4-M6, where deep WFI looks a little different, others on team like Andreas and @tiredkebab have gotten it to work on M1/M2 as well Technical deep dive in a blog post coming soon from me and @RyanTheTide regarding the whole Neo bringup we did in the matter of 2 months, it's been a lot of fun & it's just the beginning of what @AuroraSilicon team is doing with @OmarchyMac Will be working on shipping this feature to our mainline kernel now