Re: Why no interrupt priorities?

Tim Bird
2004-02-26T20:54:19Z

Richard B. Johnson wrote:
> On Thu, 26 Feb 2004, Tim Bird wrote:
>
>>What's the rationale for not supporting interrupt priorities
>>in the kernel?
>
> Interrupt priorities are supported and have been supported
> since the first cascaded interrupt controllers and, now
> with the APIC.

Please forgive my ignorance. I'm not sure what's going
on with 2.6 and work queues, but do the hardware priorities
allow you to control scheduling of interrupt bottom halves?

=============================
Tim Bird
Architecture Group Co-Chair
CE Linux Forum
Senior Staff Engineer
Sony Electronics
E-mail: Tim.Bird@am.sony.com
=============================