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| sf-slack1 | <mkurc> @litghost: I can try testing it with the PicoSoC | 08:13 |
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| sf-slack1 | <mkurc> @litghost: I've tested your `fasm2bels.py` utility. When runned on the `chain_packing` it did worked correctly. However clock signals was not correctly translated which was expected since I've used the database without #727. | 09:25 |
| sf-slack1 | <mkurc> @litghost: Unfortunatelly when runned on a working design of the PicoSoC (no tile grid split) I got an error `assert 'RAMB36.RAM_EXTENSION_A_NONE_OR_UPPER' in tile_features`. You said that it does not support BRAMs yet ? If so then I can't use it right now. Or do I need the database from #727 to solve that ? | 09:28 |
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| sf-slack1 | <acomodi> slicem regression test update: I have been able to shrink the `slicem.xml` test architecture to ~1300 lines. I have cleaned it up and removed some parts which were not needed. I'll try to further whittle down more un-needed parts. | 11:35 |
| sf-slack1 | <acomodi> I have been able to further shrink `slicem.xml` (~1000 lines). I have removed all MUX[678] and maintained only the FDRE FF. I think it is not shrinkable anymore without applying major modifications. Here's the latest commit https://github.com/SymbiFlow/vtr-verilog-to-routing/pull/29/commits/fc209c4a3e0163e47657a6c50300ac6607ad8c1a | 12:42 |
| tpb | Title: vpr: differing modes between lib_nets fix by acomodi · Pull Request #29 · SymbiFlow/vtr-verilog-to-routing · GitHub (at github.com) | 12:42 |
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| litghost | mkurc: only ramb18 support is present | 13:55 |
| litghost | Mkurc: data Cascades require ramb36 support | 13:56 |
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| sf-slack1 | <mkurc> @litghost: That is strange, I've just checked the fasm file I'am trying to convert and there is no mention of RAMB36. It uses a few RAMB18s. | 14:01 |
| litghost | Mkurc: Ah, did you get the fast file from vpr or from bit2fasm? | 14:03 |
| sf-slack1 | <mkurc> from VPR | 14:03 |
| sf-slack1 | <mkurc> Shoud I use bit2fasm ? | 14:03 |
| litghost | mkurc: yes | 14:03 |
| sf-slack1 | <mkurc> I see. | 14:03 |
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| litghost | acomodi: great | 14:05 |
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| sf-slack1 | <acomodi> litghost, mithro: now that the SLICEM issue is solved I guess I could move back on to v2x. Around two months ago I had started dealing with that (https://github.com/SymbiFlow/symbiflow-arch-defs/pull/316). What would be one of the first things to do? | 20:44 |
| tpb | Title: WIP: Improve the Verilog to XML conversion process by acomodi · Pull Request #316 · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com) | 20:44 |
| mithro | acomodi: I think that should be something we do sooner rather than later | 20:45 |
| litghost | acomodi: Another thing to consider doing is working on isolating patches for upstreaming to VTR. Probably worth documenting a concrete plan to upstream the various bits. FYI, some changes on master+wip should probably not make it upstream, e.g. the round robin work. But many of the packer changes are fixing real bugs, like you most recent one. | 20:47 |
| sf-slack1 | <acomodi> mithro: all right, I need to understand though what are the main issues to be solved there in order to proceed with the improvements in v2x | 20:50 |
| sf-slack1 | <acomodi> litghost: ok, first I would say that a full rebase with the current master mainline of VTR could be necessary before starting to isolate the patches | 20:51 |
| litghost | acomodi: Agreed | 20:53 |
| litghost | acomodi: I did a more recent merge, but there has been some large commits since then | 20:53 |
| sf-slack1 | <acomodi> litghost: after that I'll look into the various major patches that need to be merged upstream and start to think on how to isolate them then | 20:53 |
| litghost | acomodi: Thanks | 20:54 |
| litghost | acomodi: FYI the metadata is already upstream, and genfasm has a PR https://github.com/verilog-to-routing/vtr-verilog-to-routing/pull/510 | 20:54 |
| tpb | Title: Initial implemention of genfasm by litghost · Pull Request #510 · verilog-to-routing/vtr-verilog-to-routing · GitHub (at github.com) | 20:54 |
| litghost | acomodi: So if you notice changes outside of the packer, do check if those changes are included in the FASM PR | 20:55 |
| sf-slack1 | <acomodi> Yes, in fact I see that we are smth like 260 commits behind | 20:55 |
| sf-slack1 | <acomodi> All right | 20:55 |
| litghost | acomodi: We were "only" 50 commits behind a week or two ago. A large PR was merged having to do with dedicated clock networks. | 20:58 |
| sf-slack1 | <acomodi> litghost: Ok, hopefully than there will be no conflicts | 21:00 |
| litghost | acomodi: I believe I solved most of the conflicts in the last merge, all bets are off. All the more reason to make a dedicated effort to get completely upstreamed | 21:00 |
| sf-slack1 | <acomodi> litghost: yes indeed, we better do that ASAP. I will deal with it first thing tomorrow | 21:02 |
| mithro | acomodi: The first thing with the v2x was to get a bunch of tests together so that we are sure the v2x is working as we expect | 21:55 |
| mithro | acomodi: The clock / comb generation is a bit fiddly and want to make sure it is happening correctly | 21:55 |
| sf-slack1 | <acomodi> mitrho: Ok, if I remember right I had added the tests for that already in the #316 PR | 23:11 |
| sf-slack1 | <acomodi> *mithro | 23:11 |
| mithro | acomodi: Yeah | 23:13 |
| mithro | acomodi: The testing came from trying to add support for v2x of the ice40 ioblocks and getting confused about what I was trying to do | 23:17 |
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