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Add more signals and use lowskew name

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This commit is contained in:
Miodrag Milanovic 2024-07-01 14:06:12 +02:00
parent 97ad92537e
commit 26239797ba
1 changed files with 40 additions and 5 deletions
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45
himbaechel/uarch/ng-ultra/pack.cc
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@ -1399,17 +1399,20 @@ void NgUltraPacker::insert_wfbs()
insert_wfb(&ci, id_CKO1);
insert_wfb(&ci, id_CKO2);
} else if (ci.type.in(id_PLL)) {
insert_wfb(&ci, id_OSC);
insert_wfb(&ci, id_VCO);
insert_wfb(&ci, id_REFO);
insert_wfb(&ci, id_LDFO);
insert_wfb(&ci, id_CLK_DIV1);
insert_wfb(&ci, id_CLK_DIV2);
insert_wfb(&ci, id_CLK_DIV3);
insert_wfb(&ci, id_CLK_DIV4);
insert_wfb(&ci, id_CLK_DIVD1);
insert_wfb(&ci, id_CLK_DIVD2);
insert_wfb(&ci, id_CLK_DIVD3);
insert_wfb(&ci, id_CLK_DIVD4);
insert_wfb(&ci, id_CLK_DIVD5);
insert_wfb(&ci, id_CLK_CAL_DIV);
}
}
}
@ -1777,6 +1780,7 @@ void NgUltraPacker::remove_not_used()
void NgUltraPacker::setup()
{
// Note: These are per Cell type not Bel type
// Sinks
// TILE - DFF
fabric_clock_sinks[id_BEYOND_FE].insert(id_CK);
//fabric_clock_sinks[id_DFF].insert(id_CK); // This is part of BEYOND_FE
@ -1851,11 +1855,28 @@ void NgUltraPacker::setup()
tube_clock_sinks[id_GCK].insert(id_SI1);
tube_clock_sinks[id_GCK].insert(id_SI2);
// Sources
// CKG
ring_clock_source[id_IOM].insert(id_CKO1);
ring_clock_source[id_IOM].insert(id_CKO2);
ring_clock_source[id_WFB].insert(id_ZO);
ring_clock_source[id_WFG].insert(id_ZO);
ring_clock_source[id_PLL].insert(id_OSC);
ring_clock_source[id_PLL].insert(id_VCO);
ring_clock_source[id_PLL].insert(id_REFO);
ring_clock_source[id_PLL].insert(id_LDFO);
ring_clock_source[id_PLL].insert(id_CLK_DIV1);
ring_clock_source[id_PLL].insert(id_CLK_DIV2);
ring_clock_source[id_PLL].insert(id_CLK_DIV3);
ring_clock_source[id_PLL].insert(id_CLK_DIV4);
ring_clock_source[id_PLL].insert(id_CLK_DIVD1);
ring_clock_source[id_PLL].insert(id_CLK_DIVD2);
ring_clock_source[id_PLL].insert(id_CLK_DIVD3);
ring_clock_source[id_PLL].insert(id_CLK_DIVD4);
ring_clock_source[id_PLL].insert(id_CLK_DIVD5);
ring_clock_source[id_PLL].insert(id_CLK_CAL_DIV);
// TUBE
tube_clock_source[id_GCK].insert(id_SO);
}
@ -2127,7 +2148,7 @@ BelId NgUltraPacker::get_available_gck(int lobe, NetInfo *si1, NetInfo *si2)
}
return g.bel;
}
log_error("No GCK left to promote global signal.\n");
log_error("No GCK left to promote lowskew signal.\n");
return BelId();
}
@ -2150,7 +2171,7 @@ void NgUltraPacker::duplicate_gck()
if (!is_tube_clock_source(glb_net->driver))
continue;
log_info(" Global signal '%s'\n", glb_net->name.c_str(ctx));
log_info(" Lowskew signal '%s'\n", glb_net->name.c_str(ctx));
dict<int, std::vector<PortRef>> connections;
for (const auto &usr : glb_net->users) {
if (is_fabric_clock_sink(usr)) {
@ -2211,7 +2232,7 @@ void NgUltraPacker::insert_bypass_gck()
if (!is_ring_clock_source(glb_net->driver))
continue;
log_info(" Global signal '%s'\n", glb_net->name.c_str(ctx));
log_info(" Lowskew signal '%s'\n", glb_net->name.c_str(ctx));
dict<int, std::vector<PortRef>> connections;
for (const auto &usr : glb_net->users) {
if (is_fabric_clock_sink(usr)) {
@ -2251,14 +2272,28 @@ void NgUltraImpl::route_clocks()
glb_sources[id_WFB].insert(id_ZO);
glb_sources[id_WFG].insert(id_ZO);
glb_sources[id_GCK].insert(id_SO);
glb_sources[id_PLL].insert(id_OSC);
glb_sources[id_PLL].insert(id_VCO);
glb_sources[id_PLL].insert(id_REFO);
glb_sources[id_PLL].insert(id_LDFO);
glb_sources[id_PLL].insert(id_CLK_DIV1);
glb_sources[id_PLL].insert(id_CLK_DIV2);
glb_sources[id_PLL].insert(id_CLK_DIV3);
glb_sources[id_PLL].insert(id_CLK_DIV4);
glb_sources[id_PLL].insert(id_CLK_DIVD1);
glb_sources[id_PLL].insert(id_CLK_DIVD2);
glb_sources[id_PLL].insert(id_CLK_DIVD3);
glb_sources[id_PLL].insert(id_CLK_DIVD4);
glb_sources[id_PLL].insert(id_CLK_DIVD5);
glb_sources[id_PLL].insert(id_CLK_CAL_DIV);
log_info("Routing global nets...\n");
log_info("Routing lowskew nets...\n");
for (auto &net : ctx->nets) {
NetInfo *glb_net = net.second.get();
if (!glb_net->driver.cell)
continue;
// check if we have a global clock net, skip otherwise
// check if we have a lowskew net, skip otherwise
if (!(glb_sources.count(glb_net->driver.cell->type) && glb_sources[glb_net->driver.cell->type].count(glb_net->driver.port)))
continue;