Hi all, I am trying to use the counter overflow interrupt of PMU(performance monitor unit) on Omap processor. For ARM1136 I used before, in kernel there defines an interrupt number which is INT_ARM11_PMU for PMU overflow interrupt. But for Omap processor, I cannot find any interrupt number defined for PMU in the kernel. Then I noticed a function in arch/arm/perf_event.c which is "armpmu_reserve_hardware". In this function, it seems that it can dynamically get irq number from PMU device and request it. But when I call this function in my program, the function sucked at calling "reserve_pmu" and the error code shows that no PMU device is found(pmu_device==NULL). It seems no PMU is registered.Can someone give me some suggestions about this. I really appreciate any help you can offer. Thank you very much.
Regards, Lason Xia -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
