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| author | Eddie Hung <eddieh@ece.ubc.ca> | 2018-11-10 20:05:36 -0800 |
|---|---|---|
| committer | Eddie Hung <eddieh@ece.ubc.ca> | 2018-11-10 20:05:36 -0800 |
| commit | 200fb3f6646a20fb5b3bca6d66964417f477689c (patch) | |
| tree | b9ff03fb77fffd074f3f4453bfaaf997b576a82a /common | |
| parent | 15d9b3d3cc05656e58d01ba2f97ec92b6daaee1c (diff) | |
| download | nextpnr-200fb3f6646a20fb5b3bca6d66964417f477689c.tar.gz nextpnr-200fb3f6646a20fb5b3bca6d66964417f477689c.tar.bz2 nextpnr-200fb3f6646a20fb5b3bca6d66964417f477689c.zip | |
[placer1] Ignore timing of TMG_IGNORE nets
Diffstat (limited to 'common')
| -rw-r--r-- | common/place_common.cc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/common/place_common.cc b/common/place_common.cc index da8ab37d..4810697c 100644 --- a/common/place_common.cc +++ b/common/place_common.cc @@ -28,19 +28,19 @@ NEXTPNR_NAMESPACE_BEGIN wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type, float &tns) { wirelen_t wirelength = 0; - Loc driver_loc; - bool driver_gb; CellInfo *driver_cell = net->driver.cell; if (!driver_cell) return 0; if (driver_cell->bel == BelId()) return 0; - driver_gb = ctx->getBelGlobalBuf(driver_cell->bel); - driver_loc = ctx->getBelLocation(driver_cell->bel); + bool driver_gb = ctx->getBelGlobalBuf(driver_cell->bel); if (driver_gb) return 0; + IdString clock_port; + bool driver_tmg_ignore = ctx->getPortTimingClass(driver_cell, net->driver.port, clock_port); delay_t negative_slack = 0; delay_t worst_slack = std::numeric_limits<delay_t>::max(); + Loc driver_loc = ctx->getBelLocation(driver_cell->bel); int xmin = driver_loc.x, xmax = driver_loc.x, ymin = driver_loc.y, ymax = driver_loc.y; for (auto load : net->users) { if (load.cell == nullptr) @@ -48,7 +48,7 @@ wirelen_t get_net_metric(const Context *ctx, const NetInfo *net, MetricType type CellInfo *load_cell = load.cell; if (load_cell->bel == BelId()) continue; - if (ctx->timing_driven && type == MetricType::COST) { + if (!driver_tmg_ignore && ctx->timing_driven && type == MetricType::COST) { delay_t net_delay = ctx->predictDelay(net, load); auto slack = load.budget - net_delay; if (slack < 0) |