• Dan Williams's avatar
    ACPI: NFIT: Add runtime firmware activate support · a1facc1f
    Dan Williams authored
    Plumb the platform specific backend for the generic libnvdimm firmware
    activate interface. Register dimm level operations to arm/disarm
    activation, and register bus level operations to report the dynamic
    platform-quiesce time relative to the number of dimms armed for firmware
    activation.
    
    A new nfit-specific bus attribute "firmware_activate_noidle" is added to
    allow the activation to switch between platform enforced, and OS
    opportunistic device quiesce. In other words, let the hibernate cycle
    handle in-flight device-dma rather than the platform attempting to
    increase PCI-E timeouts and the like.
    
    Cc: Dave Jiang <dave.jiang@intel.com>
    Cc: Ira Weiny <ira.weiny@intel.com>
    Cc: Vishal Verma <vishal.l.verma@intel.com>
    Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
    Signed-off-by: default avatarVishal Verma <vishal.l.verma@intel.com>
    a1facc1f
core.c 103 KB