133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
/*
|
|
* nextpnr -- Next Generation Place and Route
|
|
*
|
|
* Copyright (C) 2018 Clifford Wolf <clifford@symbioticeda.com>
|
|
* Copyright (C) 2018 David Shah <david@symbioticeda.com>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "design_utils.h"
|
|
#include <algorithm>
|
|
#include <map>
|
|
#include "log.h"
|
|
#include "util.h"
|
|
NEXTPNR_NAMESPACE_BEGIN
|
|
|
|
void replace_port(CellInfo *old_cell, IdString old_name, CellInfo *rep_cell, IdString rep_name)
|
|
{
|
|
if (!old_cell->ports.count(old_name))
|
|
return;
|
|
PortInfo &old = old_cell->ports.at(old_name);
|
|
PortInfo &rep = rep_cell->ports.at(rep_name);
|
|
NPNR_ASSERT(old.type == rep.type);
|
|
|
|
rep.net = old.net;
|
|
old.net = nullptr;
|
|
if (rep.type == PORT_OUT) {
|
|
if (rep.net != nullptr) {
|
|
rep.net->driver.cell = rep_cell;
|
|
rep.net->driver.port = rep_name;
|
|
}
|
|
} else if (rep.type == PORT_IN) {
|
|
if (rep.net != nullptr) {
|
|
for (PortRef &load : rep.net->users) {
|
|
if (load.cell == old_cell && load.port == old_name) {
|
|
load.cell = rep_cell;
|
|
load.port = rep_name;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
NPNR_ASSERT(false);
|
|
}
|
|
}
|
|
|
|
// Print utilisation of a design
|
|
void print_utilisation(const Context *ctx)
|
|
{
|
|
// Sort by Bel type
|
|
std::map<IdString, int> used_types;
|
|
for (auto &cell : ctx->cells) {
|
|
used_types[cell.second.get()->type]++;
|
|
}
|
|
std::map<IdString, int> available_types;
|
|
for (auto bel : ctx->getBels()) {
|
|
available_types[ctx->getBelType(bel)]++;
|
|
}
|
|
log_break();
|
|
log_info("Device utilisation:\n");
|
|
for (auto type : available_types) {
|
|
IdString type_id = type.first;
|
|
int used_bels = get_or_default(used_types, type.first, 0);
|
|
log_info("\t%20s: %5d/%5d %5d%%\n", type_id.c_str(ctx), used_bels, type.second, 100 * used_bels / type.second);
|
|
}
|
|
log_break();
|
|
}
|
|
|
|
// Connect a net to a port
|
|
void connect_port(const Context *ctx, NetInfo *net, CellInfo *cell, IdString port_name)
|
|
{
|
|
if (net == nullptr)
|
|
return;
|
|
PortInfo &port = cell->ports.at(port_name);
|
|
NPNR_ASSERT(port.net == nullptr);
|
|
port.net = net;
|
|
if (port.type == PORT_OUT) {
|
|
NPNR_ASSERT(net->driver.cell == nullptr);
|
|
net->driver.cell = cell;
|
|
net->driver.port = port_name;
|
|
} else if (port.type == PORT_IN) {
|
|
PortRef user;
|
|
user.cell = cell;
|
|
user.port = port_name;
|
|
net->users.push_back(user);
|
|
} else {
|
|
NPNR_ASSERT_FALSE("invalid port type for connect_port");
|
|
}
|
|
}
|
|
|
|
void disconnect_port(const Context *ctx, CellInfo *cell, IdString port_name)
|
|
{
|
|
if (!cell->ports.count(port_name))
|
|
return;
|
|
PortInfo &port = cell->ports.at(port_name);
|
|
if (port.net != nullptr) {
|
|
port.net->users.erase(std::remove_if(port.net->users.begin(), port.net->users.end(),
|
|
[cell, port_name](const PortRef &user) {
|
|
return user.cell == cell && user.port == port_name;
|
|
}),
|
|
port.net->users.end());
|
|
if (port.net->driver.cell == cell && port.net->driver.port == port_name)
|
|
port.net->driver.cell = nullptr;
|
|
}
|
|
}
|
|
|
|
void connect_ports(Context *ctx, CellInfo *cell1, IdString port1_name, CellInfo *cell2, IdString port2_name)
|
|
{
|
|
PortInfo &port1 = cell1->ports.at(port1_name);
|
|
if (port1.net == nullptr) {
|
|
// No net on port1; need to create one
|
|
std::unique_ptr<NetInfo> p1net(new NetInfo());
|
|
p1net->name = ctx->id(cell1->name.str(ctx) + "$conn$" + port1_name.str(ctx));
|
|
connect_port(ctx, p1net.get(), cell1, port1_name);
|
|
IdString p1name = p1net->name;
|
|
NPNR_ASSERT(!ctx->cells.count(p1name));
|
|
ctx->nets[p1name] = std::move(p1net);
|
|
}
|
|
connect_port(ctx, port1.net, cell2, port2_name);
|
|
}
|
|
|
|
NEXTPNR_NAMESPACE_END
|