On 09/18/2014 08:41 AM, Nishanth Menon wrote: > On 09/17/2014 07:22 PM, Daniel Lezcano wrote: >> On 09/17/2014 04:20 PM, Shilimkar, Santosh wrote: > [...] >>> Could you try a long run of this little program: >>> >>> https://git.linaro.org/power/pm-qa.git/blob/HEAD:/cpuidle/cpuidle_killer.c >>> >>> [Santosh] I am sure there will not be any issue with the long run test case here. >>> Lets see if Nishant sees anything otherwise >> >> Ok. Make sure the cpu is effectively entering your C2 state with the >> sleep duration in the test program. > > Test kernel: > https://github.com/nmenon/linux-2.6-playground/commits/testing/tmlind-test-suspend-resume > (I decided to merge in various send for pull branches from maintainers > and apply cpuidle on top).. > > Controlled test run as follows on 4 different impacted platforms and 1 > platform as legacy reference. > > What we are looking for is >> cpu1_pwrdm (ON),OFF:0,RET:2677,INA:0,ON:2678,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 > RET:2677 indicated CPU1 hit C2 >> cpu0_pwrdm (ON),OFF:0,RET:2677,INA:0,ON:2678,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:0 > RET:2677 indicated CPU0 hit C2 >> mpu_pwrdm (ON),OFF:0,RET:2667,INA:0,ON:2668,RET-LOGIC-OFF:0,RET-MEMBANK1-OFF:2667,RET-MEMBANK2-OFF:0 > RET:2667 indicates that CPU0 and CPU1 managed to achieve RET together, > else by hardware constraints in place, MPU power domain will fail to > transition. > > What I see in all cases below is that transitions do take place (C2 is > successfully hit). > > Test #1: 120 seconds: > CMD: set -x;uname -a;cat /sys/kernel/debug/pm_debug/count;sleep > 1;./cpuidle_killer_120;sleep 1;cat /sys/kernel/debug/pm_debug/count;set +x > > OMAP4 Panda-ES: (2 a9) - not impacted as part of this patch - just > base test vector > http://fpaste.org/134547/14110454/ > > OMAP5 uEVM: (2 a15) > http://fpaste.org/134546/10454181/ > > DRA74x: (2 a15) > http://fpaste.org/134543/11045286/ > > DRA72: (2 a15) ^^ Correction should have been 1 a15 > http://fpaste.org/134544/11045335/ > > AM572x(DRA74x variant): (2 A15) > http://fpaste.org/134545/10453761/ > > > Test #2: 1200 seconds: (http://fpaste.org/134564/47289141/) > CMD: set -x;uname -a;cat /sys/kernel/debug/pm_debug/count;sleep > 1;./cpuidle_killer_1200;sleep 1;cat > /sys/kernel/debug/pm_debug/count;set +x > > OMAP4 Panda-ES: (2 a9) - not impacted as part of this patch - just > base test vector > http://fpaste.org/134563/41104728/ > > OMAP5 uEVM: (2 a15) > http://fpaste.org/134562/47221141/ > > DRA74x EVM: (2 a15) > http://fpaste.org/134559/11047098/ > > DRA72 EVM: (2 a15) ^^ Correction should have been 1 a15 > http://fpaste.org/134560/11047151/ > > AM572x EVM: (2 A15) > http://fpaste.org/134561/47189141/ > > -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
