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    SubjectRe: [RFC PATCH 0/9] Introduce irq_remap_ops to x86
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    On Thu, Mar 15, 2012 at 10:39 AM, Joerg Roedel <joerg.roedel@amd.com> wrote:
    > Hi,
    >
    > in order to implement interrupt remapping using the AMD IOMMU I did some
    > refactoring of the current Intel-specific interrupt remapping code. The
    > result is posted for comments in this patch-set.
    >
    > The patch-set basically removes the Intel-specific calls from the X86
    > apic and io-apic code and replaces all of them with helper functions
    > that use the irq_remap_ops to hook into an implementation specific
    > implementation.
    >
    > I have done basic testing on this patch-set on a VT-d machine with
    > interrupt remapping and found no regression so far. But as usual this
    > doesn't mean that there is none ;-)
    >
    > Anyway, since I am on vacation soon I sent out these patches to receive
    > all kinds of comments so that I can start over to add the AMD part when
    > I am back.
    >
    > Thanks,
    >
    >        Joerg
    >
    > Diffstat:
    >
    >  arch/ia64/include/asm/intr_remapping.h |    4 +
    >  arch/x86/include/asm/intr_remapping.h  |  101 +++
    >  arch/x86/include/asm/irq_remapping.h   |   45 --
    >  arch/x86/kernel/apic/apic.c            |   20 +-
    >  arch/x86/kernel/apic/io_apic.c         |  276 ++-------
    >  drivers/iommu/Makefile                 |    2 +-
    >  drivers/iommu/amd_iommu_init.c         |  123 +++--
    >  drivers/iommu/dmar.c                   |    1 +
    >  drivers/iommu/intel-iommu.c            |    1 +
    >  drivers/iommu/intel_intr_remapping.c   | 1065 ++++++++++++++++++++++++++++++++
    >  drivers/iommu/intr_remapping.c         |  810 +++----------------------
    >  drivers/iommu/intr_remapping.h         |   97 +++-
    >  include/linux/amd-iommu.h              |    2 +-
    >  include/linux/dmar.h                   |   85 ---
    >  14 files changed, 1469 insertions(+), 1163 deletions(-)

    Yes, it is good clean up for ioapic.c at least.

    Acked-by: Yinghai Lu <yinghai@kernel.org>
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