skiboot 5.9.1 was released on Tuesday November 14th, 2017. It replaces skiboot-5.9 as the current stable release in the 5.9.x series.

Over skiboot-5.9, we have two NPU2 (NVLink2) fixes and two XIVE bug fixes:

  • npu2: hw-procedures: Refactor reset_ntl procedure

    Change the implementation of reset_ntl to match the latest programming guide documentation.

  • npu2: hw-procedures: Add phy_rx_clock_sel()

    Change the RX clk mux control to be done by software instead of HW. This avoids glitches caused by changing the mux setting.

  • xive: Fix ability to clear some EQ flags

    We could never clear “unconditional notify” and “escalate”

  • xive: Update inits for DD2.0

    This updates some inits based on information from the HW designers. This includes enabling some new DD2.0 features that we don’t yet exploit.