FPGA Interrupt in FreeRTOS
Assuming this is a Cortex-A9 Zynq 7000, you will find documentation on how to use interrupts with FreeRTOS on the following link: http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html - with worked examples in the official FreeRTOS download.  Information on locating the example within the official FreeRTOS download can be found on the following link: http://www.freertos.org/RTOS-Xilinx-Zynq.html