freertos and peripherals IRQ_PRIORITY

[max]

Hi,

When i use FreeRTOS tasks with priorities 2,3,4,5 what i need to #define for XXX_CONFIG_IRQ_PRIORITY of SPI,SAADC and GPIOTE at the file sdk_config.h

Thanks

[max]

so if some task T1 with Priority P1 use SAADC with P7 and task T2 with P7 use SPI with P6 what is the flow?
Thanks