1. 04 May, 2010 1 commit
    • Eric W. Biederman's avatar
      x86, acpi/irq: Introduce apci_isa_irq_to_gsi · 2c2df841
      Eric W. Biederman authored
      There are a number of cases where the current code makes the assumption
      that isa irqs identity map to the first 16 acpi global system intereupts.
      In most instances that assumption is correct as that is the required
      behaviour in dual i8259 mode and the default behavior in ioapic mode.
      
      However there are some systems out there that take advantage of acpis
      interrupt remapping  for the isa irqs to have a completely different
      mapping of isa_irq to gsi.
      
      Introduce acpi_isa_irq_to_gsi to perform this mapping explicitly in the
      code that needs it.  Initially this will be just the current assumed
      identity mapping to ensure it's introduction does not cause regressions.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      LKML-Reference: <1269936436-7039-1-git-send-email-ebiederm@xmission.com>
      Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
      2c2df841
  2. 03 May, 2010 15 commits
  3. 30 Apr, 2010 24 commits