1. 04 Oct, 2006 1 commit
    • Benjamin Herrenschmidt's avatar
      [POWERPC] Cell interrupt rework · 2e194583
      Benjamin Herrenschmidt authored
      This patch reworks the cell iic interrupt handling so that:
      
       - Node ID is back in the interrupt number (only one IRQ host is created
      for all nodes). This allows interrupts from sources on another node to
      be routed non-locally. This will allow possibly one day to fix maxcpus=1
      or 2 and still get interrupts from devices on BE 1. (A bit more fixing
      is needed for that) and it will allow us to implement actual affinity
      control of external interrupts.
      
       - Added handling of the IO exceptions interrupts (badly named, but I
      re-used the name initially used by STI). Those are the interrupts
      exposed by IIC_ISR and IIC_IRR, such as the IOC translation exception,
      performance monitor, etc... Those get their special numbers in the IRQ
      number space and are internally implemented as a cascade on unit 0xe,
      class 1 of each node.
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      Acked-by: default avatarArnd Bergmann <arnd.bergmann@de.ibm.com>
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      2e194583
  2. 03 Oct, 2006 39 commits