1. 13 Jan, 2018 1 commit
    • James Morse's avatar
      firmware: arm_sdei: Add driver for Software Delegated Exceptions · ad6eb31e
      James Morse authored
      The Software Delegated Exception Interface (SDEI) is an ARM standard
      for registering callbacks from the platform firmware into the OS.
      This is typically used to implement firmware notifications (such as
      firmware-first RAS) or promote an IRQ that has been promoted to a
      firmware-assisted NMI.
      
      Add the code for detecting the SDEI version and the framework for
      registering and unregistering events. Subsequent patches will add the
      arch-specific backend code and the necessary power management hooks.
      
      Only shared events are supported, power management, private events and
      discovery for ACPI systems will be added by later patches.
      Signed-off-by: default avatarJames Morse <james.morse@arm.com>
      Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
      ad6eb31e