Re: [PATCH 11/25] i386 irq: Dynamic irq support

[Rajesh Shah <rajesh.shah@intel.com>]

On Tue, Jun 20, 2006 at 04:28:24PM -0600, Eric W. Biederman wrote:
> The current implementation of create_irq() is a hack but it is the
> current hack that msi.c uses, and unfortunately the ``generic'' apic
> msi ops depend on this hack.  Thus we are stuck this hack of assuming
> irq == vector until the depencencies in the generic msi code are removed.
> 
> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
> ---
>  arch/i386/kernel/io_apic.c |   48 ++++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 48 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
> index 16966f4..04f78ff 100644
> --- a/arch/i386/kernel/io_apic.c
> +++ b/arch/i386/kernel/io_apic.c
> @@ -2497,6 +2497,54 @@ static int __init ioapic_init_sysfs(void
>  
>  device_initcall(ioapic_init_sysfs);
>  
> +#ifdef CONFIG_PCI_MSI
> +/*

It would be really good to decouple MSI implementation from IO
APICs, since there's really no real hardware dependence here.
This code can actually go to arch/xxx/pci/msi-apic.c

Rajesh
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