1. 18 6月, 2015 1 次提交
  2. 22 5月, 2015 2 次提交
    • A
      opal: Remove events notifier · 81f2f7ce
      Alistair Popple 提交于
      All users of the old opal events notifier have been converted over to
      the irq domain so remove the event notifier functions.
      Signed-off-by: NAlistair Popple <alistair@popple.id.au>
      Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
      81f2f7ce
    • A
      powerpc/powernv: Add a virtual irqchip for opal events · 9f0fd049
      Alistair Popple 提交于
      Whenever an interrupt is received for opal the linux kernel gets a
      bitfield indicating certain events that have occurred and need handling
      by the various device drivers. Currently this is handled using a
      notifier interface where we call every device driver that has
      registered to receive opal events.
      
      This approach has several drawbacks. For example each driver has to do
      its own checking to see if the event is relevant as well as event
      masking. There is also no easy method of recording the number of times
      we receive particular events.
      
      This patch solves these issues by exposing opal events via the
      standard interrupt APIs by adding a new interrupt chip and
      domain. Drivers can then register for the appropriate events using
      standard kernel calls such as irq_of_parse_and_map().
      Signed-off-by: NAlistair Popple <alistair@popple.id.au>
      Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
      9f0fd049