lkml.org 
[lkml]   [2012]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] perf, Add support for Xeon-Phi PMU
On Tue, Sep 25, 2012 at 02:05:58PM +0200, stephane eranian wrote:
> On Tue, Sep 25, 2012 at 2:01 PM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > On Tue, 2012-09-25 at 15:42 +0400, Cyrill Gorcunov wrote:
> >
> >> Guys, letme re-read this whole mail thread first since I have no clue
> >> what this remapping about ;)
> >
> > x86_setup_perfctr() / set_ext_hw_attr() have special purposed 0 and -1
> > config values to mean -ENOENT and -EINVAL resp.
> >
> > This means neither config value can be a 'real' event. Now it turns out
> > Xeon-Phi has an actual event 0, which is masked by these special case
> > thingies.
>
> Then how about using -1 or -2 for ENOENT and EINVAL?

-2 can't be a valid p4 config as far as i can tell.


\
 
 \ /
  Last update: 2012-09-25 14:41    [W:0.067 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site