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-rw-r--r--ice40/pack.cc47
1 files changed, 25 insertions, 22 deletions
diff --git a/ice40/pack.cc b/ice40/pack.cc
index 7cdfc643..f20d3a9e 100644
--- a/ice40/pack.cc
+++ b/ice40/pack.cc
@@ -38,7 +38,7 @@ static void pack_lut_lutffs(Context *ctx)
CellInfo *ci = cell.second;
log_info("cell '%s' is of type '%s'\n", ci->name.c_str(),
ci->type.c_str());
- if (is_lut(ci)) {
+ if (is_lut(ctx, ci)) {
CellInfo *packed =
create_ice_cell(ctx, "ICESTORM_LC", ci->name.str() + "_LC");
std::copy(ci->attrs.begin(), ci->attrs.end(),
@@ -50,7 +50,7 @@ static void pack_lut_lutffs(Context *ctx)
// See if we can pack into a DFF
// TODO: LUT cascade
NetInfo *o = ci->ports.at("O").net;
- CellInfo *dff = net_only_drives(o, is_ff, "D", true);
+ CellInfo *dff = net_only_drives(ctx, o, is_ff, "D", true);
auto lut_bel = ci->attrs.find("BEL");
bool packed_dff = false;
if (dff) {
@@ -60,8 +60,8 @@ static void pack_lut_lutffs(Context *ctx)
lut_bel->second != dff_bel->second) {
// Locations don't match, can't pack
} else {
- lut_to_lc(ci, packed, false);
- dff_to_lc(dff, packed, false);
+ lut_to_lc(ctx, ci, packed, false);
+ dff_to_lc(ctx, dff, packed, false);
ctx->nets.erase(o->name);
if (dff_bel != dff->attrs.end())
packed->attrs["BEL"] = dff_bel->second;
@@ -72,7 +72,7 @@ static void pack_lut_lutffs(Context *ctx)
}
}
if (!packed_dff) {
- lut_to_lc(ci, packed, true);
+ lut_to_lc(ctx, ci, packed, true);
}
}
}
@@ -94,7 +94,7 @@ static void pack_nonlut_ffs(Context *ctx)
for (auto cell : ctx->cells) {
CellInfo *ci = cell.second;
- if (is_ff(ci)) {
+ if (is_ff(ctx, ci)) {
CellInfo *packed = create_ice_cell(ctx, "ICESTORM_LC",
ci->name.str() + "_DFFLC");
std::copy(ci->attrs.begin(), ci->attrs.end(),
@@ -103,7 +103,7 @@ static void pack_nonlut_ffs(Context *ctx)
packed->name.c_str());
packed_cells.insert(ci->name);
new_cells.push_back(packed);
- dff_to_lc(ci, packed, true);
+ dff_to_lc(ctx, ci, packed, true);
}
}
for (auto pcell : packed_cells) {
@@ -124,7 +124,7 @@ static void pack_ram(Context *ctx)
for (auto cell : ctx->cells) {
CellInfo *ci = cell.second;
- if (is_ram(ci)) {
+ if (is_ram(ctx, ci)) {
CellInfo *packed = create_ice_cell(ctx, "ICESTORM_RAM",
ci->name.str() + "_RAM");
packed_cells.insert(ci->name);
@@ -161,14 +161,16 @@ static void pack_ram(Context *ctx)
}
// Merge a net into a constant net
-static void set_net_constant(NetInfo *orig, NetInfo *constnet, bool constval)
+static void set_net_constant(const Context *ctx, NetInfo *orig,
+ NetInfo *constnet, bool constval)
{
orig->driver.cell = nullptr;
for (auto user : orig->users) {
if (user.cell != nullptr) {
CellInfo *uc = user.cell;
log_info("%s user %s\n", orig->name.c_str(), uc->name.c_str());
- if (is_lut(uc) && (user.port.str().at(0) == 'I') && !constval) {
+ if (is_lut(ctx, uc) && (user.port.str().at(0) == 'I') &&
+ !constval) {
uc->ports[user.port].net = nullptr;
} else {
uc->ports[user.port].net = constnet;
@@ -203,13 +205,13 @@ static void pack_constants(Context *ctx)
for (auto net : ctx->nets) {
NetInfo *ni = net.second;
if (ni->driver.cell != nullptr && ni->driver.cell->type == "GND") {
- set_net_constant(ni, gnd_net, false);
+ set_net_constant(ctx, ni, gnd_net, false);
ctx->cells[gnd_cell->name] = gnd_cell;
ctx->nets[gnd_net->name] = gnd_net;
dead_nets.push_back(net.first);
} else if (ni->driver.cell != nullptr &&
ni->driver.cell->type == "VCC") {
- set_net_constant(ni, vcc_net, true);
+ set_net_constant(ctx, ni, vcc_net, true);
ctx->cells[vcc_cell->name] = vcc_cell;
ctx->nets[vcc_net->name] = vcc_net;
dead_nets.push_back(net.first);
@@ -239,11 +241,11 @@ static void pack_io(Context *ctx)
if (is_nextpnr_iob(ci)) {
CellInfo *sb = nullptr;
if (ci->type == "$nextpnr_ibuf" || ci->type == "$nextpnr_iobuf") {
- sb = net_only_drives(ci->ports.at("O").net, is_sb_io,
+ sb = net_only_drives(ctx, ci->ports.at("O").net, is_sb_io,
"PACKAGE_PIN", true, ci);
} else if (ci->type == "$nextpnr_obuf") {
- sb = net_only_drives(ci->ports.at("I").net, is_sb_io,
+ sb = net_only_drives(ctx, ci->ports.at("I").net, is_sb_io,
"PACKAGE_PIN", true, ci);
}
if (sb != nullptr) {
@@ -260,7 +262,7 @@ static void pack_io(Context *ctx)
} else {
// Create a SB_IO buffer
sb = create_ice_cell(ctx, "SB_IO");
- nxio_to_sb(ci, sb);
+ nxio_to_sb(ctx, ci, sb);
new_cells.push_back(sb);
}
packed_cells.insert(ci->name);
@@ -297,8 +299,9 @@ static void insert_global(Context *ctx, NetInfo *net, bool is_reset,
gb->ports["GLOBAL_BUFFER_OUTPUT"].net = glbnet;
std::vector<PortRef> keep_users;
for (auto user : net->users) {
- if (is_clock_port(user) || (is_reset && is_reset_port(user)) ||
- (is_cen && is_enable_port(user))) {
+ if (is_clock_port(ctx, user) ||
+ (is_reset && is_reset_port(ctx, user)) ||
+ (is_cen && is_enable_port(ctx, user))) {
user.cell->ports[user.port].net = glbnet;
glbnet->users.push_back(user);
} else {
@@ -317,17 +320,17 @@ static void promote_globals(Context *ctx)
std::unordered_map<IdString, int> clock_count, reset_count, cen_count;
for (auto net : ctx->nets) {
NetInfo *ni = net.second;
- if (ni->driver.cell != nullptr && !is_global_net(ni)) {
+ if (ni->driver.cell != nullptr && !is_global_net(ctx, ni)) {
clock_count[net.first] = 0;
reset_count[net.first] = 0;
cen_count[net.first] = 0;
for (auto user : ni->users) {
- if (is_clock_port(user))
+ if (is_clock_port(ctx, user))
clock_count[net.first]++;
- if (is_reset_port(user))
+ if (is_reset_port(ctx, user))
reset_count[net.first]++;
- if (is_enable_port(user))
+ if (is_enable_port(ctx, user))
cen_count[net.first]++;
}
}
@@ -335,7 +338,7 @@ static void promote_globals(Context *ctx)
int prom_globals = 0, prom_resets = 0, prom_cens = 0;
int gbs_available = 8;
for (auto cell : ctx->cells)
- if (is_gbuf(cell.second))
+ if (is_gbuf(ctx, cell.second))
--gbs_available;
while (prom_globals < gbs_available) {
auto global_clock =
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-14 05:56:12 +0000