diff options
Diffstat (limited to 'ice40')
| -rw-r--r-- | ice40/arch.cc | 6 | ||||
| -rw-r--r-- | ice40/arch.h | 3 | ||||
| -rw-r--r-- | ice40/main.cc | 6 |
3 files changed, 14 insertions, 1 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index eff1d9b9..84856402 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -659,7 +659,11 @@ delay_t Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, de // ----------------------------------------------------------------------- -bool Arch::place() { return placer1(getCtx()); } +bool Arch::place() { + Placer1Cfg cfg; + cfg.constraintWeight = placer_constraintWeight; + return placer1(getCtx(), cfg); +} bool Arch::route() { diff --git a/ice40/arch.h b/ice40/arch.h index 98361132..b9b4f3c5 100644 --- a/ice40/arch.h +++ b/ice40/arch.h @@ -797,6 +797,9 @@ struct Arch : BaseCtx } NPNR_ASSERT_FALSE("Expected PLL pin to share an output with an SB_IO D_IN_{0,1}"); } + + float placer_constraintWeight = 10; + }; NEXTPNR_NAMESPACE_END diff --git a/ice40/main.cc b/ice40/main.cc index 41d264ad..60f5b444 100644 --- a/ice40/main.cc +++ b/ice40/main.cc @@ -106,6 +106,8 @@ int main(int argc, char *argv[]) options.add_options()("seed", po::value<int>(), "seed value for random number generator"); options.add_options()("slack_redist_iter", po::value<int>(), "number of iterations between slack redistribution"); + options.add_options()("cstrweight", po::value<float>(), "placer weighting for relative constraint satisfaction"); + options.add_options()("version,V", "show version"); options.add_options()("tmfuzz", "run path delay estimate fuzzer"); options.add_options()("test", "check architecture database integrity"); @@ -318,6 +320,10 @@ int main(int argc, char *argv[]) ctx->slack_redist_iter = vm["slack_redist_iter"].as<int>(); } + if (vm.count("cstrweight")) { + ctx->placer_constraintWeight = vm["cstrweight"].as<float>(); + } + if (vm.count("svg")) { std::cout << "<svg xmlns=\"http://www.w3.org/2000/svg\" " "xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n"; |