Hi, On 07/10/2015 06:56 PM, Alexander Sverdlin wrote: > Hi! > > On 10/07/15 15:17, ext Vignesh R wrote: >>>> I would propose you to throw away spinlocks. Convert threaded IRQ to >>>>>> just one hardirq handler. And continue debugging. You will reduce the >>>>>> load of the system with the above measures, maybe it will not happen >>>>>> any more, maybe you'll figure out that problem is somewhere else. >>>> >>>> Or this. >> I am not convinced with moving entire code at hardirq context. I believe >> its better to keep hardirq as small as possible. > > How deep is the controller's FIFO? 1 byte? 2 bytes?
As per AM57x TRM[1] section 24.1.4.8 max FIFO depth can be 64bytes. [1] http://www.ti.com/lit/ug/spruhz6/spruhz6.pdf -- Regards Vignesh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
