BYOC Support for BlackParrot RV64GC #158
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Co-authored-by: Jonathan Balkind <[email protected]>
Jbalkind
reviewed
Oct 9, 2024
Jbalkind
reviewed
Oct 9, 2024
Jbalkind
reviewed
Oct 9, 2024
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| if {[info exists ::env(PITON_BLACKPARROT)]} { | ||
| append ALL_DEFAULT_VERILOG_MACROS " PITON_BLACKPARROT PITON_RV64_PLATFORM PITON_RV64_DEBUGUNIT PITON_RV64_CLINT PITON_RV64_PLIC" |
Collaborator
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I think we probably don't want PITON_RV64_DEBUGUNIT here right?
Author
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Yeah probably. We do have debug unit support, but I think it's not hooked up right now
Jbalkind
reviewed
Oct 9, 2024
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Supercedes #130, copying description here:
This PR adds support for BlackParrot simulation to OpenPiton via the BYOC framework. OpenPiton+BlackParrot on FPGA is currently beta.
There is a necessary fix to the L2 cache, which replicates the data of subword requests, as required by P-Mesh. This should be compatible with existing implementations which mux the word from the correct byte offset. It just allows implementations to be lazy and use whichever is more convenient. I can separate this out to a second PR if helpful.