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gatemate: Enable static placer as an option 

Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2026-05-05 15:13:31 +02:00
parent ebd364bfee
commit 91ecaa6ad6
2 changed files with 76 additions and 0 deletions
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75
himbaechel/uarch/gatemate/gatemate.cc
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@ -23,6 +23,7 @@
#include "log.h"
#include "nextpnr_assertions.h"
#include "placer_heap.h"
#include "placer_static.h"
#define GEN_INIT_CONSTIDS
#define HIMBAECHEL_CONSTIDS "uarch/gatemate/constids.inc"
@ -1003,6 +1004,80 @@ void GateMateImpl::configurePlacerHeap(PlacerHeapCfg &cfg)
cfg.placeAllAtOnce = true;
}
void GateMateImpl::configurePlacerStatic(PlacerStaticCfg &cfg)
{
cfg.glbBufTypes.insert(id_CLKIN);
cfg.glbBufTypes.insert(id_GLBOUT);
cfg.glbBufTypes.insert(id_PLL);
cfg.glbBufTypes.insert(id_USR_RSTN);
cfg.glbBufTypes.insert(id_CFG_CTRL);
cfg.glbBufTypes.insert(id_SERDES);
{
cfg.cell_groups.emplace_back();
auto &comb = cfg.cell_groups.back();
comb.name = ctx->id("COMB");
comb.bel_area[id_CPE_LT_U] = StaticRect(1.0f, 0.5f);
comb.bel_area[id_CPE_LT_L] = StaticRect(1.0f, 0.5f);
comb.bel_area[id_CPE_CPLINES] = StaticRect(0.0f, 0.0f);
comb.bel_area[id_CPE_COMP] = StaticRect(0.0f, 0.0f);
comb.bel_area[id_CPE_RAMIO_U] = StaticRect(0.0f, 0.0f);
comb.bel_area[id_CPE_RAMIO_L] = StaticRect(0.0f, 0.0f);
comb.cell_area[id_CPE_LT_U] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_LT_L] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_LT] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_L2T4] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_DUMMY] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_CPLINES] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_COMP] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_RAMIO] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_RAMI] = StaticRect(1.0f, 0.5f);
comb.cell_area[id_CPE_RAMO] = StaticRect(1.0f, 0.5f);
comb.zero_area_cells.insert(id_CPE_CPLINES);
comb.zero_area_cells.insert(id_CPE_COMP);
comb.zero_area_cells.insert(id_CPE_RAMIO);
comb.zero_area_cells.insert(id_CPE_RAMI);
comb.zero_area_cells.insert(id_CPE_RAMO);
comb.spacer_rect = StaticRect(1.0f, 0.5f);
}
{
cfg.cell_groups.emplace_back();
auto &ff = cfg.cell_groups.back();
ff.name = ctx->id("FF");
ff.bel_area[id_CPE_FF_U] = StaticRect(1.0f, 0.5f);
ff.bel_area[id_CPE_FF_L] = StaticRect(1.0f, 0.5f);
ff.cell_area[id_CPE_FF_U] = StaticRect(1.0f, 0.5f);
ff.cell_area[id_CPE_FF_L] = StaticRect(1.0f, 0.5f);
ff.cell_area[id_CPE_FF] = StaticRect(1.0f, 0.5f);
ff.cell_area[id_CPE_LATCH] = StaticRect(1.0f, 0.5f);
ff.spacer_rect = StaticRect(1.0f, 0.5f);
}
{
cfg.cell_groups.emplace_back();
auto &ram = cfg.cell_groups.back();
ram.name = ctx->id("RAM");
ram.bel_area[id_RAM] = StaticRect(1.0f, 2.0f);
ram.bel_area[id_RAM_HALF_L] = StaticRect(1.0f, 2.0f);
ram.cell_area[id_RAM] = StaticRect(1.0f, 2.0f);
ram.cell_area[id_RAM_HALF] = StaticRect(1.0f, 2.0f);
ram.cell_area[id_RAM_HALF_DUMMY] = StaticRect(1.0f, 2.0f);
ram.spacer_rect = StaticRect(1.0f, 2.0f);
}
}
int GateMateImpl::get_dff_config(CellInfo *dff) const
{
int val = 0;

1
himbaechel/uarch/gatemate/gatemate.h
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@ -78,6 +78,7 @@ struct GateMateImpl : HimbaechelAPI
Loc getRelativeConstraint(Loc &root_loc, IdString id) const;
void configurePlacerHeap(PlacerHeapCfg &cfg) override;
void configurePlacerStatic(PlacerStaticCfg &cfg) override;
bool isPipInverting(PipId pip) const override;