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Synthesis: Add fa/ha extract and techmap pass #253

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merged 4 commits into from
Dec 21, 2023

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mtdudek
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@mtdudek mtdudek commented Dec 18, 2023

This commit adds extra extract_fa Yosys pass combined with fa/ha techmapping.
It runs only when user specifies $fa/$ha to DPK mapping.
This commit also adds new adder_mapping attr to the synthesize_rtl rule.
This file provides Yosys with $fa/$ha blackboxes.
This change may affect existing designs, as extra opt pass is being run.

Seventh part of the #243

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This change looks good but nothing seems to use it?

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mithro commented Dec 19, 2023

As described in #239 I'm going to wait a for the other changes to bake for a bit before landing these.

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mtdudek commented Dec 19, 2023

I'm not sure if I should attach verilog files that are PDK and yosys specific,
so I left it up to the user to provide such mapping.

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mtdudek commented Dec 20, 2023

I can add them to this folders.
Should I modify PDK provider to also include ha/fa mapping files?

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mithro commented Dec 20, 2023

Should I modify PDK provider to also include ha/fa mapping files?

I assume that is what is needed to get us into the same set up as OpenROAD-flow-scripts?

This commit adds extra `extract_fa` Yosys pass combined
with fa/ha techmapping. It runs only when user specifies
$fa/$ha to DPK mapping.
This commit also adds new `adder_mapping` attr
to the `synthesize_rtl` rule. This file provides
Yosys with $fa/$ha blackboxes.
This change may affect existing designs,
as extra `opt` pass is being run.

Signed-off-by: Maciej Dudek <mdudek@antmicro.com>
This commit adds Yosys fa/ha techmapping file
to the OpenROAD configuration provider.
These files are PDK and Standard cell specific,
so each PDK variant has to provide its own definitions.

Signed-off-by: Maciej Dudek <mdudek@antmicro.com>
This commit adds fa_ha_mapping file to
the Skywater sky130 fd_sc_hd PDK.

Signed-off-by: Maciej Dudek <mdudek@antmicro.com>
This commit adds fa_ha_mapping files to the
ASAP7 R/L/SL PDKs.

Signed-off-by: Maciej Dudek <mdudek@antmicro.com>
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mtdudek commented Dec 20, 2023

I've added fa/ha mapping files from ORFS and I've modified open_road_configuration
to provide fa/ha mapping file. Doing so I've also rebased branch onto the newest main.

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mithro commented Dec 21, 2023

LGTM!

@mithro mithro merged commit 63cc3d4 into hdl:main Dec 21, 2023
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2 participants