Messages in this thread | | | Subject | Re: linux interrupt handling problem | Date | Tue, 9 Nov 1999 16:11:51 +0000 (GMT) | From | Alan Cox <> |
| |
> The requirement for a sti() in interrupts makes it impossible to utilize > these priorities to achieve better interrupt perfomance. What other people > sometimes would like to have - the ability to preempt slow interrupts - > get we for free implemented in hardware, but we can't use it because of > the above requirement. :(
I can find no requirement that sti() in interrupts actually does anything. It seems quite permissible for it to be a non inside of an IRQ handler or to only lower the level to the current irq level
Alan
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |