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    SubjectRe: [Patch 1/2] Disable SW irqbalance/irqaffinity for E7520/E7320/E7525
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    Suresh Siddha <suresh.b.siddha@intel.com> writes:

    > Set TARGET_CPUS on x86_64 to cpu_online_map. This brings the code inline
    > with x86 mach-default

    And breaks compilation with MSI on. Here's a hackish workaround
    that will probably fail with >64 CPUs.
    Proper fix would be to fix MSI to deal with cpumasks properly

    -Andi

    diff -u linux/drivers/pci/msi.c-o linux/drivers/pci/msi.c
    --- linux/drivers/pci/msi.c-o 2004-09-24 13:03:44.000000000 +0200
    +++ linux/drivers/pci/msi.c 2004-09-24 13:34:18.000000000 +0200
    @@ -282,7 +282,8 @@
    msi_address->lo_address.u.dest_mode = MSI_DEST_MODE;
    msi_address->lo_address.u.redirection_hint = MSI_REDIRECTION_HINT_MODE;
    msi_address->lo_address.u.dest_id = dest_id;
    - msi_address->lo_address.value |= (MSI_TARGET_CPU << MSI_TARGET_CPU_SHIFT);
    + /* FIXME: broken for >64 CPUs */
    + msi_address->lo_address.value |= (*cpus_addr(MSI_TARGET_CPU) << MSI_TARGET_CPU_SHIFT);
    }

    static int msi_free_vector(struct pci_dev* dev, int vector, int reassign);
    diff -u linux/include/asm-x86_64/smp.h-o linux/include/asm-x86_64/smp.h
    -
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