Re: hoo boy, interrupt Handling on BGQ

2012-11-14 Thread Segher Boessenkool
So interrupts need to go to FW before Linux, please let not talk about how silly that is. Lets talk about something far more silly... In order to get to the Linux exception handlers, we have to tell FW where the interrupt page is, and then it _copies_ it. IFAICT, this means that each vectors

Re: hoo boy, interrupt Handling on BGQ

2012-11-12 Thread Benjamin Herrenschmidt
On Mon, 2012-11-12 at 15:33 -0600, Jimi Xenidis wrote: > So interrupts need to go to FW before Linux, please let not talk about how > silly that is. > Lets talk about something far more silly... > In order to get to the Linux exception handlers, we have to tell FW where the > interrupt page is, a

hoo boy, interrupt Handling on BGQ

2012-11-12 Thread Jimi Xenidis
So interrupts need to go to FW before Linux, please let not talk about how silly that is. Lets talk about something far more silly... In order to get to the Linux exception handlers, we have to tell FW where the interrupt page is, and then it _copies_ it. IFAICT, this means that each vectors on