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| author | David Shah <davey1576@gmail.com> | 2018-08-01 05:59:34 +0000 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-08-01 05:59:34 +0000 |
| commit | b1a99789224774f640558b7b26fd2385b4f249db (patch) | |
| tree | 5fb3aa360c2d0e4e625e4deafcc10f36d6420f9f /generic/arch.cc | |
| parent | 474aa3470abb9a9bbbae137574542a6e5ac190a0 (diff) | |
| parent | 94161e646d0384bde9401d3dbd1a76244abd9d23 (diff) | |
| download | nextpnr-b1a99789224774f640558b7b26fd2385b4f249db.tar.gz nextpnr-b1a99789224774f640558b7b26fd2385b4f249db.tar.bz2 nextpnr-b1a99789224774f640558b7b26fd2385b4f249db.zip | |
Merge branch 'redist_slack' into 'master'
Update budgets throughout placement and routing
See merge request SymbioticEDA/nextpnr!16
Diffstat (limited to 'generic/arch.cc')
| -rw-r--r-- | generic/arch.cc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/generic/arch.cc b/generic/arch.cc index 892bb0fd..b1905e6f 100644 --- a/generic/arch.cc +++ b/generic/arch.cc @@ -403,6 +403,19 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const return (dx + dy) * grid_distance_to_delay; } +delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const; +{ + const auto &driver = net_info->driver; + auto driver_loc = getBelLocation(driver.cell->bel); + auto sink_loc = getBelLocation(sink.cell->bel); + + int dx = abs(driver_loc.x - driver_loc.x); + int dy = abs(sink_loc.y - sink_locy); + return (dx + dy) * grid_distance_to_delay; +} + +delay_t getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t budget) const { return budget; } + // --------------------------------------------------------------- bool Arch::place() { return placer1(getCtx()); } |