Openpiton Support for NetFPGA-SUME board#76
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Jbalkind
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This is awesome! Could you say a bit more about what you can and can't do on SUME with the support you added?
I've added a set of comments from a quick review that would be good to be addressed. We may want to try to test this out on our end before merging. Not sure yet but will get back to you on that.
Thanks a ton!
| if midas_args is None: | ||
| cmd = "sims -sys=manycore -novcs_build -midas_only \ | ||
| -midas_args='-DUART_DIV_LATCH=0x%x -DFPGA_HW -DCIOP -DNO_SLAN_INIT_SPC' %s" % (uart_div_latch, tname) | ||
| cmd = "/var/services/homes/mabbasidinan/work/hw_memoization/openpiton/piton/tools/bin/sims -sys=manycore -novcs_build -midas_only -midas_args='-DUART_DIV_LATCH=0x%x -DFPGA_HW -DCIOP -DNO_SLAN_INIT_SPC' %s" % (uart_div_latch, tname) |
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No need for this absolute path here
| else: | ||
| cmd = "sims -sys=manycore -novcs_build -midas_only \ | ||
| -midas_args='-DUART_DIV_LATCH=0x%x -DFPGA_HW -DCIOP -DNO_SLAN_INIT_SPC %s' %s" % \ | ||
| cmd = "/var/services/homes/mabbasidinan/work/hw_memoization/openpiton/piton/tools/bin/sims -sys=manycore -novcs_build -midas_only -midas_args='-DUART_DIV_LATCH=0x%x -DFPGA_HW -DCIOP -DNO_SLAN_INIT_SPC %s' %s" % \ |
| # used to run precompiled riscv tests | ||
| cmd += " -precompiled" | ||
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| print cmd |
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Can we remove this print?
| set_property "target_constrs_file" "$constraints_file" $fileset_obj | ||
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| #set_property "target_constrs_file" "$constraints_file" $fileset_obj | ||
| set_property "target_constrs_file" "$debug_constraints_file" $fileset_obj |
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| # Add/Import constrs file and set constrs file properties | ||
| set constraints_file "${BOARD_DIR}/constraints.xdc" | ||
| set board_constraints_file "${BOARD_DIR}/SUME_Master.xdc" |
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I don't know about these changes in gen_project.tcl. Can we get them to be SUME-only somehow?
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| `ifdef VCU118_BOARD | ||
| `ifdef SUME_BOARD | ||
| //input reset, |
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Is this block necessary if it's commented out?
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This pull request contains the information of NetFPGA-SUME board and required changes to run Openpiton on this board.
Known issue:
1- Currently, there is no support for the network interface in this pull request. To run the Linux on NetFPGA-SUME, ariane_sdk should be built without the Xilinx NIC driver.
2- Instead of the reset button there is Virtual IO module that used for resetting the system.
3- The sd_cd signal should be manually asserted and de-asserted manually through VIO to boot the Linux. VIO facilitates use of FPGA words that users do not have direct access to and connect to over the network.
Support for NetFPGA-SUME This work has been done as a part of a research project in the COMPAS Lab, StonyBrook University. (https://compas.cs.stonybrook.edu/)