lkml.org 
[lkml]   [2014]   [Jan]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch/rfc] perf on raspberry-pi without overflow interrupt
On Fri, 10 Jan 2014, Stephane Eranian wrote:

> But before we do that, can someone confirm that on Pi there is simply
> no interrupt
> generated by the PMU or is it that we don't know how to route it back?

The closest I've seen is this posting from one of the rasp-pi employees
who presumably has access to better documentation than we do:

http://www.raspberrypi.org/phpBB3/viewtopic.php?f=33&t=19151

It sounds like the SoC just doesn't bother hooking the nPMUIRQ line up
anything useful on the interrupt controller. The Pi is complicated
because it's really just a GPU chip that just happens to have an ARM1176
core hanging off the side of it.

Vince


\
 
 \ /
  Last update: 2014-01-10 15:21    [W:0.128 / U:0.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site