mirror of https://github.com/YosysHQ/yosys.git
Refactor to ShregmapTechXilinx7Static
This commit is contained in:
Eddie Hung
parent
45d1bdf83a
commit
e1e37db860
|
|
@ -29,7 +29,7 @@ struct ShregmapTech
|
|||
virtual void init(const Module * /*module*/, const SigMap &/*sigmap*/) {}
|
||||
virtual void non_chain_user(const SigBit &/*bit*/, const Cell* /*cell*/, IdString /*port*/) {}
|
||||
virtual bool analyze(vector<int> &taps, const vector<SigBit> &qbits) = 0;
|
||||
virtual bool fixup(Cell *cell, dict<int, SigBit> &taps) = 0;
|
||||
virtual RTLIL::Cell* fixup(Cell *cell, dict<int, SigBit> &taps) = 0;
|
||||
};
|
||||
|
||||
struct ShregmapOptions
|
||||
|
|
@ -71,7 +71,7 @@ struct ShregmapTechGreenpak4 : ShregmapTech
|
|||
return true;
|
||||
}
|
||||
|
||||
virtual bool fixup(Cell *cell, dict<int, SigBit> &taps) override
|
||||
virtual RTLIL::Cell* fixup(Cell *cell, dict<int, SigBit> &taps) override
|
||||
{
|
||||
auto D = cell->getPort("\\D");
|
||||
auto C = cell->getPort("\\C");
|
||||
|
|
@ -89,16 +89,84 @@ struct ShregmapTechGreenpak4 : ShregmapTech
|
|||
}
|
||||
|
||||
cell->setParam("\\OUTA_INVERT", 0);
|
||||
return false;
|
||||
return newcell;
|
||||
}
|
||||
};
|
||||
|
||||
struct ShregmapTechXilinx7Dynamic : ShregmapTech
|
||||
struct ShregmapTechXilinx7Static : ShregmapTech
|
||||
{
|
||||
dict<SigBit, std::tuple<Cell*,int,int>> sigbit_to_shiftx_offset;
|
||||
const ShregmapOptions &opts;
|
||||
|
||||
ShregmapTechXilinx7Dynamic(const ShregmapOptions &opts) : opts(opts) {}
|
||||
ShregmapTechXilinx7Static(const ShregmapOptions &opts) : opts(opts) {}
|
||||
|
||||
virtual bool analyze(vector<int> &taps, const vector<SigBit> &/*qbits*/) override
|
||||
{
|
||||
if (GetSize(taps) == 1)
|
||||
return taps[0] >= opts.minlen-1;
|
||||
|
||||
if (taps.back() < opts.minlen-1)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
virtual RTLIL::Cell* fixup(Cell *cell, dict<int, SigBit> &/*taps*/) override
|
||||
{
|
||||
auto newcell = cell->module->addCell(NEW_ID, "$__SHREG_");
|
||||
newcell->set_src_attribute(cell->get_src_attribute());
|
||||
newcell->setParam("\\DEPTH", cell->getParam("\\DEPTH"));
|
||||
newcell->setParam("\\INIT", cell->getParam("\\INIT"));
|
||||
|
||||
if (cell->type.in("$__SHREG_DFF_N_", "$__SHREG_DFF_P_",
|
||||
"$__SHREG_DFFE_NN_", "$__SHREG_DFFE_NP_", "$__SHREG_DFFE_PN_", "$__SHREG_DFFE_PP_")) {
|
||||
int param_clkpol = -1;
|
||||
int param_enpol = 2;
|
||||
if (cell->type == "$__SHREG_DFF_N_") param_clkpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFF_P_") param_clkpol = 1;
|
||||
else if (cell->type == "$__SHREG_DFFE_NN_") param_clkpol = 0, param_enpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFFE_NP_") param_clkpol = 0, param_enpol = 1;
|
||||
else if (cell->type == "$__SHREG_DFFE_PN_") param_clkpol = 1, param_enpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFFE_PP_") param_clkpol = 1, param_enpol = 1;
|
||||
else log_abort();
|
||||
|
||||
log_assert(param_clkpol >= 0);
|
||||
newcell->setParam("\\CLKPOL", param_clkpol);
|
||||
newcell->setParam("\\ENPOL", param_enpol);
|
||||
|
||||
if (cell->hasPort("\\E"))
|
||||
newcell->setPort("\\E", cell->getPort("\\E"));
|
||||
}
|
||||
else if (cell->type.in("$__SHREG_FDRE_", "$__SHREG_FDSE_", "$__SHREG_FDCE_", "$__SHREG_FDPE_")) {
|
||||
if (cell->getParam("\\IS_C_INVERTED").as_bool())
|
||||
newcell->setParam("\\CLKPOL", 0);
|
||||
else
|
||||
newcell->setParam("\\CLKPOL", 1);
|
||||
newcell->setParam("\\ENPOL", 1);
|
||||
|
||||
newcell->setPort("\\E", cell->getPort("\\CE"));
|
||||
}
|
||||
else if (cell->type.in("$__SHREG_FDRE_1_", "$__SHREG_FDSE_1_", "$__SHREG_FDCE_1_", "$__SHREG_FDPE_1_")) {
|
||||
newcell->setParam("\\CLKPOL", 0);
|
||||
|
||||
newcell->setPort("\\E", cell->getPort("\\CE"));
|
||||
}
|
||||
else log_abort();
|
||||
|
||||
newcell->setParam("\\ENPOL", 1);
|
||||
|
||||
newcell->setPort("\\C", cell->getPort("\\C"));
|
||||
newcell->setPort("\\D", cell->getPort("\\D"));
|
||||
newcell->setPort("\\Q", cell->getPort("\\Q"));
|
||||
|
||||
return newcell;
|
||||
}
|
||||
};
|
||||
|
||||
struct ShregmapTechXilinx7Dynamic : ShregmapTechXilinx7Static
|
||||
{
|
||||
dict<SigBit, std::tuple<Cell*,int,int>> sigbit_to_shiftx_offset;
|
||||
|
||||
ShregmapTechXilinx7Dynamic(const ShregmapOptions &opts) : ShregmapTechXilinx7Static(opts) {}
|
||||
|
||||
virtual void init(const Module* module, const SigMap &sigmap) override
|
||||
{
|
||||
|
|
@ -200,7 +268,7 @@ struct ShregmapTechXilinx7Dynamic : ShregmapTech
|
|||
return true;
|
||||
}
|
||||
|
||||
virtual bool fixup(Cell *cell, dict<int, SigBit> &taps) override
|
||||
virtual RTLIL::Cell* fixup(Cell *cell, dict<int, SigBit> &taps) override
|
||||
{
|
||||
const auto &tap = *taps.begin();
|
||||
auto bit = tap.second;
|
||||
|
|
@ -208,52 +276,24 @@ struct ShregmapTechXilinx7Dynamic : ShregmapTech
|
|||
auto it = sigbit_to_shiftx_offset.find(bit);
|
||||
log_assert(it != sigbit_to_shiftx_offset.end());
|
||||
|
||||
auto newcell = cell->module->addCell(NEW_ID, "$__XILINX_SHREG_");
|
||||
newcell->set_src_attribute(cell->get_src_attribute());
|
||||
newcell->setParam("\\DEPTH", cell->getParam("\\DEPTH"));
|
||||
newcell->setParam("\\INIT", cell->getParam("\\INIT"));
|
||||
|
||||
if (cell->type.in("$__SHREG_DFF_N_", "$__SHREG_DFF_P_",
|
||||
"$__SHREG_DFFE_NN_", "$__SHREG_DFFE_NP_", "$__SHREG_DFFE_PN_", "$__SHREG_DFFE_PP_")) {
|
||||
int param_clkpol = -1;
|
||||
int param_enpol = 2;
|
||||
if (cell->type == "$__SHREG_DFF_N_") param_clkpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFF_P_") param_clkpol = 1;
|
||||
else if (cell->type == "$__SHREG_DFFE_NN_") param_clkpol = 0, param_enpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFFE_NP_") param_clkpol = 0, param_enpol = 1;
|
||||
else if (cell->type == "$__SHREG_DFFE_PN_") param_clkpol = 1, param_enpol = 0;
|
||||
else if (cell->type == "$__SHREG_DFFE_PP_") param_clkpol = 1, param_enpol = 1;
|
||||
else log_abort();
|
||||
|
||||
log_assert(param_clkpol >= 0);
|
||||
cell->setParam("\\CLKPOL", param_clkpol);
|
||||
cell->setParam("\\ENPOL", param_enpol);
|
||||
}
|
||||
else log_abort();
|
||||
|
||||
newcell->setPort("\\C", cell->getPort("\\C"));
|
||||
newcell->setPort("\\D", cell->getPort("\\D"));
|
||||
if (cell->hasPort("\\E"))
|
||||
newcell->setPort("\\E", cell->getPort("\\E"));
|
||||
RTLIL::Cell* newcell = ShregmapTechXilinx7Static::fixup(cell, taps);
|
||||
log_assert(newcell);
|
||||
log_assert(newcell->type == "$__SHREG_");
|
||||
newcell->type = "$__XILINX_SHREG_";
|
||||
|
||||
Cell* shiftx = std::get<0>(it->second);
|
||||
RTLIL::SigSpec l_wire, q_wire;
|
||||
if (shiftx->type == "$shiftx") {
|
||||
RTLIL::SigSpec l_wire;
|
||||
if (shiftx->type == "$shiftx")
|
||||
l_wire = shiftx->getPort("\\B");
|
||||
q_wire = shiftx->getPort("\\Y");
|
||||
shiftx->setPort("\\Y", cell->module->addWire(NEW_ID));
|
||||
}
|
||||
else if (shiftx->type == "$mux") {
|
||||
else if (shiftx->type == "$mux")
|
||||
l_wire = shiftx->getPort("\\S");
|
||||
q_wire = shiftx->getPort("\\Y");
|
||||
shiftx->setPort("\\Y", cell->module->addWire(NEW_ID));
|
||||
}
|
||||
else log_abort();
|
||||
|
||||
newcell->setPort("\\Q", q_wire);
|
||||
newcell->setPort("\\L", l_wire);
|
||||
newcell->setPort("\\Q", shiftx->getPort("\\Y"));
|
||||
shiftx->setPort("\\Y", cell->module->addWire(NEW_ID));
|
||||
|
||||
return false;
|
||||
return newcell;
|
||||
}
|
||||
};
|
||||
|
||||
|
|
@ -509,7 +549,7 @@ struct ShregmapWorker
|
|||
first_cell->setPort(q_port, last_cell->getPort(q_port));
|
||||
first_cell->setParam("\\DEPTH", depth);
|
||||
|
||||
if (opts.tech != nullptr && !opts.tech->fixup(first_cell, taps_dict))
|
||||
if (opts.tech != nullptr && opts.tech->fixup(first_cell, taps_dict))
|
||||
remove_cells.insert(first_cell);
|
||||
|
||||
for (int i = 1; i < depth; i++)
|
||||
|
|
|
|||
Loading…
Reference in New Issue