oprofile and ARM A9 hardware counter

Paul Walmsley paul at pwsan.com
Tue May 8 17:50:53 EDT 2012


On Mon, 7 May 2012, Kevin Hilman wrote:

> Well, Paul will have to comment here for the final word, but IIUC, the
> hwmod flags are supposed to indicate only what the HW is capable of.

s/hwmod/clockdomain/ in this case, but that's exactly right.  The 
motivation is to allow this data to be autogenerated and to allow it to 
be verified against the TRM (assuming that the TRM is not wrong).
If there's some weird hardware bug, the intention is to either add a 
special workaround flag so the bug doesn't get hidden, or to deal with it 
in the code in some way.


- Paul



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