oprofile and ARM A9 hardware counter

[Will Deacon]

On Fri, May 11, 2012 at 03:52:59PM +0100, Jon Hunter wrote:
> Hi Will,

Hello,

> On 05/11/2012 08:49 AM, Will Deacon wrote:
> > I enabled OMAP3 debug peripherals, so I selected CPU_HAS_PMU that way.
> 
> I tried the same (make omap2plus_defconfig and enabled the above
> option), and I do see the interrupts firing on both 4430 and 4460...
> 
> / # cat /proc/interrupts
>            CPU0       CPU1
>  29:       1023        404       GIC  twd
>  33:        401          0       GIC  arm-pmu
>  34:          0        441       GIC  arm-pmu

Well, at least it's working for somebody!

> What is your kernel commit ID that you applied the patches on top of?

7cf543bc ("Linux-omap rebuilt: Updated to -rc6, merged in pending branches,
please test"). Is there something else I need too?

> What board are you using? Blaze, panda, etc, and is it 4430 or 4460?

Ye olde Panda 4430. It does work with my perf/omap4 branch though using the
same .config (I can mail it to you separately if you want).

Cheers,

Will