On 03/08/2017 04:19 PM, Dinh Nguyen wrote:

On 02/28/2017 09:52 AM, Florian Vaussard wrote:

quoted

Hi,

These patches add suport for ARM Performance Monitor Units on Arria5 and
Cyclone5 SoCFPGA. This was tested on a Cyclone 5 SoC DK board.

Side note: the same change can be probably applied to Arria10 as well,
but we do not have the hardware here to test.

Regards,
Florian

Florian Vaussard (2):
  ARM: dts: socfpga: Add labels for CPU nodes
  ARM: dts: socfpga: Add support for PMU

 arch/arm/boot/dts/socfpga.dtsi | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

Applied!

I have to wonder how this was tested. I tried this on 4.14.y, but when I
do "perf record -e cycles", I get no samples. Moreover, when I check the
PMU interrupts, "grep pmu /proc/interrupts", it shows 0 interrupts from
the ARM PMU all the time.

Why am I not getting any PMU interrupts when using perf ?

-- 
Best regards,
Marek Vasut