Re: [LinuxBIOS] HT interrupts

[yhlu]

Eric already added HT int support to Linux kernel from 2.6.19.

you could use HT-MSI if you OS doesn't support HT irq directly.

YH

On 2/14/07, Perry Wang  wrote:
> Hi,
>
> Sorry to spam again but I couldn't figure out this on my own.  Questions:
> Does LinuxBIOS actually program the HT interrupt definition registers
>
> based on the interrupt capability and mobo config, or does Linux do this? Or
> is it up to the driver?
> What's the recommended way of doing HT interrupt that will work with both
>
> APIC and 8259?  EOI seems to be APIC only (can be turned off in the
> interrupt request) and I guess I can't rely on EOI to always be there?
> EOI in a way acts as flow control.  So without EOI is it possible that I
>
> can flood the PIC/APIC with too many interrupt packets?  I suppose the
> credit based flow control in HT can take care of this...
>
> Thanks again
> Perry