mistral: Implement some misc. things

Signed-off-by: gatecat <gatecat@ds0.me>

1 files changed, 24 insertions, 2 deletions

diff --git a/mistral/arch.cc b/mistral/arch.cc
index 632fb0b2..5fc2a0b4 100644
--- a/mistral/arch.cc
+++ b/mistral/arch.cc
@@ -80,9 +80,11 @@ Arch::Arch(ArchArgs args)
         }
     }
 
-    for (auto gpio_pos : cyclonev->gpio_get_pos()) {
+    for (auto gpio_pos : cyclonev->gpio_get_pos())
         create_gpio(CycloneV::pos2x(gpio_pos), CycloneV::pos2y(gpio_pos));
-    }
+
+    for (auto cmuxh_pos : cyclonev->cmuxh_get_pos())
+        create_clkbuf(CycloneV::pos2x(cmuxh_pos), CycloneV::pos2y(cmuxh_pos));
 
     // This import takes about 5s, perhaps long term we can speed it up, e.g. defer to Mistral more...
     log_info("Initialising routing graph...\n");
@@ -354,6 +356,26 @@ void Arch::assignArchInfo()
     }
 }
 
+delay_t Arch::estimateDelay(WireId src, WireId dst) const
+{
+    int x0 = CycloneV::rn2x(src.node);
+    int y0 = CycloneV::rn2y(src.node);
+    int x1 = CycloneV::rn2x(dst.node);
+    int y1 = CycloneV::rn2y(dst.node);
+    return 100 * std::abs(y1 - y0) + 100 * std::abs(x1 - x0) + 100;
+}
+
+delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const
+{
+    if (net_info->driver.cell == nullptr || net_info->driver.cell->bel == BelId())
+        return 100;
+    if (sink.cell->bel == BelId())
+        return 100;
+    Loc src_loc = getBelLocation(net_info->driver.cell->bel);
+    Loc dst_loc = getBelLocation(sink.cell->bel);
+    return std::abs(dst_loc.y - src_loc.y) * 100 + std::abs(dst_loc.x - src_loc.x) * 100 + 100;
+}
+
 bool Arch::place()
 {
     std::string placer = str_or_default(settings, id("placer"), defaultPlacer);