Re: [PATCH 0/2] ARM: dts: socfpga: Add support for PMU on Arria5/Cyclone5
On 03/08/2017 04:19 PM, Dinh Nguyen wrote: > > > On 02/28/2017 09:52 AM, Florian Vaussard wrote: >> 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
Re: [PATCH 0/2] ARM: dts: socfpga: Add support for PMU on Arria5/Cyclone5
On 03/08/2017 04:19 PM, Dinh Nguyen wrote: > > > On 02/28/2017 09:52 AM, Florian Vaussard wrote: >> 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
Re: [PATCH 0/2] ARM: dts: socfpga: Add support for PMU on Arria5/Cyclone5
On 02/28/2017 09:52 AM, Florian Vaussard wrote: > 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! Thanks, Dinh
Re: [PATCH 0/2] ARM: dts: socfpga: Add support for PMU on Arria5/Cyclone5
On 02/28/2017 09:52 AM, Florian Vaussard wrote: > 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! Thanks, Dinh
