Visible to Intel only — GUID: ewa1403031026702
Ixiasoft
Visible to Intel only — GUID: ewa1403031026702
Ixiasoft
2.1.1.2. OpenCL Kernel Interface
Parameter | Description |
---|---|
Number of global memory systems | Number of global memory types in your board design. |
Signal or Port | Description |
---|---|
clk | The clock input used for the host control interface. The clock rate of clk can be slow. |
reset | This reset input resets the control interface. It also triggers the kernel_reset signal, which resets all kernel logic. |
ctrl | Use this agent port to connect to the OpenCL host interface. This interface is a low-speed interface with which you set kernel arguments and start the kernel's execution. |
kernel_clk | The kernel_clk output from the OpenCL Kernel Clock Generator drives this clock input. |
kernel_cra | This Avalon®-MM host interface communicates directly with the kernels generated by the Intel® FPGA SDK for OpenCL™ Offline Compiler. Export the Avalon-MM interface to the OpenCL Kernel Interface and name it in the board_spec.xml file. |
sw_reset_in | When necessary, the OpenCL host interface resets the kernel via the ctrl interface. If the board design requires a kernel reset, it can do so via this reset input. Otherwise, connect the interface to a global power-on reset. |
kernel_reset | Use this reset output to reset the kernel and any other hardware that communicates with the kernel.
Warning: This reset occurs between the MMD open and close calls. Therefore, it must not reset anything necessary for the operation of your MMD.
|
sw_reset_export | This reset output is the same as kernel_reset, but it is synchronized to the clk interface. Use this output to reset logic that is not in the kernel_clk clock domain but should be reset whenever the kernel resets. |
acl_bsp_memorg_host | The memory interfaces use these signals. Based on the number of global memory systems you specify in the OpenCL Kernel Interface component parameter editor, the Intel® Quartus® Prime Pro Edition software creates the corresponding number of copies of this signal, each with a different hexadecimal suffix. Connect each signal to the OpenCL Memory Bank Divider component associated with each global memory system (for example, DDR). Then, list the hexadecimal suffix in the config_addr attribute of the global_mem element in the board_spec.xml file. |
kernel_irq_from_kernel | An interrupt input from the kernel. This signal is exported and named in the board_spec.xml file. |
kernel_irq_to_host | An interrupt output from the kernel. This signal connects to the host interface. |