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build bel list in constructor

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This commit is contained in:
Dan Ravensloft 2021-02-04 14:28:39 +00:00 committed by gatecat
parent 170d6cffdd
commit 9f2cbe1762
2 changed files with 35 additions and 44 deletions
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76
cyclonev/arch.cc
View File

@ -31,6 +31,35 @@ Arch::Arch(ArchArgs args)
this->args = args; this->args = args;
this->cyclonev = mistral::CycloneV::get_model(args.device); this->cyclonev = mistral::CycloneV::get_model(args.device);
NPNR_ASSERT(this->cyclonev != nullptr); NPNR_ASSERT(this->cyclonev != nullptr);
for (int x = 0; x < cyclonev->get_tile_sx(); x++) {
for (int y = 0; y < cyclonev->get_tile_sy(); y++) {
CycloneV::pos_t pos = cyclonev->xy2pos(x, y);
for (CycloneV::block_type_t bel : cyclonev->pos_get_bels(pos)) {
switch (bel) {
case CycloneV::block_type_t::LAB:
/*
* nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB
* is one BEL, but nextpnr wants something with more precision.
*
* One LAB contains 10 ALMs.
* One ALM contains 2 LUT outputs and 4 flop outputs.
*/
for (int z = 0; z < 60; z++) {
this->bel_list.push_back(BelId(pos, z));
}
case CycloneV::block_type_t::GPIO:
// GPIO tiles contain 4 pins.
for (int z = 0; z < 4; z++) {
this->bel_list.push_back(BelId(pos, z));
}
default:
continue;
}
}
}
}
} }
int Arch::getTileBelDimZ(int x, int y) const int Arch::getTileBelDimZ(int x, int y) const
@ -106,43 +135,6 @@ void Arch::unbindBel(BelId bel)
refreshUiBel(bel); refreshUiBel(bel);
} }
std::vector<BelId> Arch::getBels() const
{
// This should probably be redesigned, but it's a hack.
std::vector<BelId> bels{};
for (int x = 0; x < cyclonev->get_tile_sx(); x++) {
for (int y = 0; y < cyclonev->get_tile_sy(); y++) {
CycloneV::pos_t pos = cyclonev->xy2pos(x, y);
for (CycloneV::block_type_t bel : cyclonev->pos_get_bels(pos)) {
switch (bel) {
case CycloneV::block_type_t::LAB:
/*
* nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB
* is one BEL, but nextpnr wants something with more precision.
*
* One LAB contains 10 ALMs.
* One ALM contains 2 LUT outputs and 4 flop outputs.
*/
for (int z = 0; z < 60; z++) {
bels.push_back(BelId(pos, z));
}
case CycloneV::block_type_t::GPIO:
// GPIO tiles contain 4 pins.
for (int z = 0; z < 4; z++) {
bels.push_back(BelId(pos, z));
}
default:
continue;
}
}
}
}
return bels;
}
std::vector<BelId> Arch::getBelsByTile(int x, int y) const std::vector<BelId> Arch::getBelsByTile(int x, int y) const
{ {
// This should probably be redesigned, but it's a hack. // This should probably be redesigned, but it's a hack.
@ -150,8 +142,8 @@ std::vector<BelId> Arch::getBelsByTile(int x, int y) const
CycloneV::pos_t pos = cyclonev->xy2pos(x, y); CycloneV::pos_t pos = cyclonev->xy2pos(x, y);
for (CycloneV::block_type_t bel : cyclonev->pos_get_bels(pos)) { for (CycloneV::block_type_t cvbel : cyclonev->pos_get_bels(pos)) {
switch (bel) { switch (cvbel) {
case CycloneV::block_type_t::LAB: case CycloneV::block_type_t::LAB:
/* /*
* nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB * nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB
@ -178,10 +170,8 @@ std::vector<BelId> Arch::getBelsByTile(int x, int y) const
IdString Arch::getBelType(BelId bel) const IdString Arch::getBelType(BelId bel) const
{ {
CycloneV::pos_t pos = cyclonev->xy2pos(x, y); for (CycloneV::block_type_t cvbel : cyclonev->pos_get_bels(bel.pos)) {
switch (cvbel) {
for (CycloneV::block_type_t bel : cyclonev->pos_get_bels(pos)) {
switch (bel) {
case CycloneV::block_type_t::LAB: case CycloneV::block_type_t::LAB:
/* /*
* nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB * nextpnr and mistral disagree on what a BEL is: mistral thinks an entire LAB

3
cyclonev/arch.h
View File

@ -54,6 +54,7 @@ struct Arch : BaseCtx
mistral::CycloneV* cyclonev; mistral::CycloneV* cyclonev;
std::unordered_map<BelId, BelInfo> bels; std::unordered_map<BelId, BelInfo> bels;
std::vector<BelId> bel_list;
Arch(ArchArgs args); Arch(ArchArgs args);
@ -80,7 +81,7 @@ struct Arch : BaseCtx
bool checkBelAvail(BelId bel) const { return bels.at(bel).bound_cell == nullptr; } bool checkBelAvail(BelId bel) const { return bels.at(bel).bound_cell == nullptr; }
CellInfo *getBoundBelCell(BelId bel) const { return bels.at(bel).bound_cell; } CellInfo *getBoundBelCell(BelId bel) const { return bels.at(bel).bound_cell; }
CellInfo *getConflictingBelCell(BelId bel) const { return nullptr; } // HACK CellInfo *getConflictingBelCell(BelId bel) const { return nullptr; } // HACK
std::vector<BelId> getBels() const; // arch.cc const std::vector<BelId>& Arch::getBels() const { return bel_list; }
Loc getBelLocation(BelId bel) const { return Loc(CycloneV::pos2x(bel.pos), CycloneV::pos2y(bel.pos), bel.z); } Loc getBelLocation(BelId bel) const { return Loc(CycloneV::pos2x(bel.pos), CycloneV::pos2y(bel.pos), bel.z); }
BelId getBelByLocation(Loc loc) const { return BelId(CycloneV::xy2pos(loc.x, loc.y), loc.z); } BelId getBelByLocation(Loc loc) const { return BelId(CycloneV::xy2pos(loc.x, loc.y), loc.z); }
std::vector<BelId> getBelsByTile(int x, int y) const; // arch.cc std::vector<BelId> getBelsByTile(int x, int y) const; // arch.cc