caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mistral: Implement bounding boxes for router2

Browse Source 
Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-05-13 23:51:47 +01:00
parent e688ee0e89
commit 6ad329c540
2 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
mistral/arch.cc
View File

@ -382,6 +382,20 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const
return 100 * std::abs(y1 - y0) + 100 * std::abs(x1 - x0) + 100; return 100 * std::abs(y1 - y0) + 100 * std::abs(x1 - x0) + 100;
} }
ArcBounds Arch::getRouteBoundingBox(WireId src, WireId dst) const
{
ArcBounds bounds;
int src_x = CycloneV::rn2x(src.node);
int src_y = CycloneV::rn2y(src.node);
int dst_x = CycloneV::rn2x(dst.node);
int dst_y = CycloneV::rn2y(dst.node);
bounds.x0 = std::min(src_x, dst_x);
bounds.y0 = std::min(src_y, dst_y);
bounds.x1 = std::max(src_x, dst_x);
bounds.y1 = std::max(src_y, dst_y);
return bounds;
}
delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const
{ {
if (net_info->driver.cell == nullptr || net_info->driver.cell->bel == BelId()) if (net_info->driver.cell == nullptr || net_info->driver.cell->bel == BelId())

2
mistral/arch.h
View File

@ -386,7 +386,7 @@ struct Arch : BaseArch<ArchRanges>
delay_t getDelayFromNS(float ns) const override { return delay_t(ns * 1000.0f); }; delay_t getDelayFromNS(float ns) const override { return delay_t(ns * 1000.0f); };
uint32_t getDelayChecksum(delay_t v) const override { return v; }; uint32_t getDelayChecksum(delay_t v) const override { return v; };
ArcBounds getRouteBoundingBox(WireId src, WireId dst) const override { return ArcBounds(); } ArcBounds getRouteBoundingBox(WireId src, WireId dst) const override;
// ------------------------------------------------- // -------------------------------------------------