cvs commit: src/sys/ia64/ia64 interrupt.c nexus.c sapic.c src/sys/ia64/include intr.h md_var.h sapicvar.h

Marcel Moolenaar marcel at
Mon Jul 30 22:29:35 UTC 2007

marcel      2007-07-30 22:29:33 UTC

  FreeBSD src repository

  Modified files:
    sys/ia64/ia64        interrupt.c nexus.c sapic.c 
    sys/ia64/include     intr.h md_var.h sapicvar.h 
  Rework the interrupt code and add support for interrupt filtering
  (INTR_FILTER). This includes:
  o  Save a pointer to the sapic structure and IRQ for every vector,
     so that we can quickly EOI, mask and unmask the interrupt.
  o  Add locking to the sapic code now that we can reprogram a
     sapic on multiple CPUs at the same time.
  o  Use u_int for the vector and IRQ. We only have 256 vectors, so
     using a 64-bit type for it is rather excessive.
  o  Properly handle concurrent registration of a handler for the
     same vector.
  Since vectors have a corresponding priority, we should not map
  IRQs to vectors in a linear fashion, but rather pick a vector
  that has a priority in line with the interrupt type. This is left
  for later. The vector/IRQ interchange has been untangled as much
  as possible to make this easier.
  Approved by: re (blacket)
  Revision  Changes    Path
  1.60      +114 -81   src/sys/ia64/ia64/interrupt.c
  1.18      +1 -1      src/sys/ia64/ia64/nexus.c
  1.14      +109 -80   src/sys/ia64/ia64/sapic.c
  1.5       +1 -6      src/sys/ia64/include/intr.h
  1.25      +1 -1      src/sys/ia64/include/md_var.h
  1.5       +13 -8     src/sys/ia64/include/sapicvar.h

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