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soheilshahrouzsoheilshahrouz
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replace accesses to member vars of t_rr_switch with RRGraphView API calls
1 parent 3cc543f commit 5bc080e

19 files changed

+170
-171
lines changed

‎libs/libarchfpga/src/physical_types.h

Lines changed: 11 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1887,6 +1887,17 @@ struct t_rr_switch_override_inf {
18871887
, Cinternal(switch_inf.Cinternal)
18881888
, Tdel(switch_inf.Tdel) {}
18891889

1890+
t_rr_switch_override_inf& operator=(const t_rr_switch_override_inf& other) {
1891+
if (this != &other) { // Self-assignment check
1892+
R = other.R;
1893+
Cin = other.Cin;
1894+
Cout = other.Cout;
1895+
Cinternal = other.Cinternal;
1896+
Tdel = other.Tdel;
1897+
}
1898+
return *this;
1899+
}
1900+
18901901
auto operator<=>(const t_rr_switch_override_inf&) const = default;
18911902
};
18921903

‎libs/librrgraph/src/base/rr_graph_storage.cpp

Lines changed: 15 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -589,6 +589,21 @@ bool t_rr_graph_storage::edge_is_configurable(RRNodeId id, t_edge_size iedge, co
589589
return rr_switches[RRSwitchId(iswitch)].configurable();
590590
}
591591

592+
bool t_rr_graph_storage::edge_is_configurable(RREdgeId id, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const {
593+
auto iswitch = edge_switch(id);
594+
return rr_switches[RRSwitchId(iswitch)].configurable();
595+
}
596+
597+
bool t_rr_graph_storage::edge_is_buffered(RRNodeId id, t_edge_size iedge, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const {
598+
auto iswitch = edge_switch(id, iedge);
599+
return rr_switches[RRSwitchId(iswitch)].buffered();
600+
}
601+
602+
bool t_rr_graph_storage::edge_is_buffered(RREdgeId id, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const {
603+
auto iswitch = edge_switch(id);
604+
return rr_switches[RRSwitchId(iswitch)].buffered();
605+
}
606+
592607
bool t_rr_graph_storage::validate_node(RRNodeId node_id, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const {
593608
t_edge_size iedge = 0;
594609
for (auto edge : edges(node_id)) {

‎libs/librrgraph/src/base/rr_graph_storage.h

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -357,6 +357,9 @@ class t_rr_graph_storage {
357357
return size_t(last_edge(id)) - size_t(first_edge(id));
358358
}
359359
bool edge_is_configurable(RRNodeId id, t_edge_size iedge, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
360+
bool edge_is_configurable(RREdgeId id, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
361+
bool edge_is_buffered(RRNodeId id, t_edge_size iedge, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
362+
bool edge_is_buffered(RREdgeId id, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
360363
t_edge_size num_configurable_edges(RRNodeId node, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
361364
t_edge_size num_non_configurable_edges(RRNodeId node, const vtr::vector<RRSwitchId, t_rr_switch_inf>& rr_switches) const;
362365

‎libs/librrgraph/src/base/rr_graph_view.h

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -499,6 +499,18 @@ class RRGraphView {
499499
return node_storage_.edge_is_configurable(id, iedge, rr_switch_inf_);
500500
}
501501

502+
inline bool edge_is_configurable(RREdgeId id) const {
503+
return node_storage_.edge_is_configurable(id, rr_switch_inf_);
504+
}
505+
506+
inline bool edge_is_buffered(RRNodeId id, t_edge_size iedge) const {
507+
return node_storage_.edge_is_buffered(id, iedge, rr_switch_inf_);
508+
}
509+
510+
inline bool edge_is_buffered(RREdgeId id) const {
511+
return node_storage_.edge_is_buffered(id, rr_switch_inf_);
512+
}
513+
502514
/** @brief Return the number of configurable edges.
503515
*/
504516
inline t_edge_size num_configurable_edges(RRNodeId node) const {

‎libs/librrgraph/src/utils/alloc_and_load_rr_indexed_data.cpp

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -670,9 +670,9 @@ static void calculate_average_switch(const RRGraphView& rr_graph,
670670
continue;
671671
}
672672

673-
avg_switch_R += rr_graph.rr_switch_inf(RRSwitchId(switch_index)).R;
673+
avg_switch_R += rr_graph.edge_R(edge);
674674
avg_switch_T += rr_graph.edge_delay(edge);
675-
avg_switch_Cinternal += rr_graph.rr_switch_inf(RRSwitchId(switch_index)).Cinternal;
675+
avg_switch_Cinternal += rr_graph.edge_Cint(edge);
676676

677677
if (buffered == UNDEFINED) {
678678
if (rr_graph.rr_switch_inf(RRSwitchId(switch_index)).buffered()) {

‎vpr/src/base/old_traceback.cpp

Lines changed: 13 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -18,19 +18,19 @@ vtr::optional<RouteTree> TracebackCompat::traceback_to_route_tree(t_trace* head)
1818
RouteTree tree(RRNodeId(head->index));
1919

2020
if (head->next)
21-
traceback_to_route_tree_x(head->next, tree, tree._root, RRSwitchId(head->iswitch));
21+
traceback_to_route_tree_x(head->next, tree, tree._root, head->edge_id);
2222

2323
tree.reload_timing();
2424
return tree;
2525
}
2626

2727
/* Add the path indicated by the trace to parent */
28-
void TracebackCompat::traceback_to_route_tree_x(t_trace* trace, RouteTree& tree, RouteTreeNode* parent, RRSwitchId parent_switch) {
28+
void TracebackCompat::traceback_to_route_tree_x(t_trace* trace, RouteTree& tree, RouteTreeNode* parent, RREdgeId parent_edge) {
2929
auto& device_ctx = g_vpr_ctx.device();
3030
const auto& rr_graph = device_ctx.rr_graph;
3131
RRNodeId inode = RRNodeId(trace->index);
3232

33-
RouteTreeNode* new_node = new RouteTreeNode(inode, parent_switch, parent);
33+
RouteTreeNode* new_node = new RouteTreeNode(inode, parent_edge, parent);
3434
tree.add_node(parent, new_node);
3535
new_node->net_pin_index = trace->net_pin_index;
3636
new_node->R_upstream = std::numeric_limits<float>::quiet_NaN();
@@ -48,10 +48,10 @@ void TracebackCompat::traceback_to_route_tree_x(t_trace* trace, RouteTree& tree,
4848
RRNodeId next_rr_node = RRNodeId(trace->next->index);
4949
RouteTreeNode* branch = tree._rr_node_to_rt_node.at(next_rr_node);
5050
VTR_ASSERT(trace->next->next);
51-
traceback_to_route_tree_x(trace->next->next, tree, branch, RRSwitchId(trace->next->iswitch));
51+
traceback_to_route_tree_x(trace->next->next, tree, branch, trace->next->edge_id);
5252
}
5353
} else {
54-
traceback_to_route_tree_x(trace->next, tree, new_node, RRSwitchId(trace->iswitch));
54+
traceback_to_route_tree_x(trace->next, tree, new_node, trace->edge_id);
5555
}
5656
}
5757

@@ -62,7 +62,7 @@ std::pair<t_trace*, t_trace*> traceback_from_route_tree_recurr(t_trace* head, t_
6262
t_trace* curr = alloc_trace_data();
6363
curr->index = size_t(node.inode);
6464
curr->net_pin_index = node.net_pin_index;
65-
curr->iswitch = size_t(child.parent_switch);
65+
curr->edge_id = child.parent_edge;
6666
curr->next = nullptr;
6767

6868
if (tail) {
@@ -83,7 +83,7 @@ std::pair<t_trace*, t_trace*> traceback_from_route_tree_recurr(t_trace* head, t_
8383
t_trace* curr = alloc_trace_data();
8484
curr->index = size_t(node.inode);
8585
curr->net_pin_index = node.net_pin_index;
86-
curr->iswitch = OPEN;
86+
curr->edge_id = RREdgeId::INVALID();
8787
curr->next = nullptr;
8888

8989
if (tail) {
@@ -122,11 +122,11 @@ void print_traceback(const t_trace* trace) {
122122
RRNodeId inode(trace->index);
123123
VTR_LOG("%d (%s)", inode, rr_node_typename[rr_graph.node_type(inode)]);
124124

125-
if (trace->iswitch == OPEN) {
125+
if (!trace->edge_id.is_valid()) {
126126
VTR_LOG(" !"); //End of branch
127127
}
128128

129-
if (prev && prev->iswitch != OPEN && !rr_graph.rr_switch_inf(RRSwitchId(prev->iswitch)).configurable()) {
129+
if (prev && prev->edge_id.is_valid() && !rr_graph.edge_is_configurable(prev->edge_id)) {
130130
VTR_LOG("*"); //Reached non-configurably
131131
}
132132

@@ -156,7 +156,7 @@ bool validate_traceback_recurr(t_trace* trace, std::set<int>& seen_rr_nodes) {
156156
t_trace* next = trace->next;
157157

158158
if (next) {
159-
if (trace->iswitch == OPEN) { //End of a branch
159+
if (!trace->edge_id.is_valid()) { //End of a branch
160160

161161
//Verify that the next element (branch point) has been already seen in the traceback so far
162162
if (!seen_rr_nodes.count(next->index)) {
@@ -179,12 +179,13 @@ bool validate_traceback_recurr(t_trace* trace, std::set<int>& seen_rr_nodes) {
179179
found = true;
180180

181181
//Verify that the switch matches
182-
int rr_iswitch = rr_graph.edge_switch(RRNodeId(trace->index), iedge);
182+
// TODO: fix this
183+
/*int rr_iswitch = rr_graph.edge_switch(RRNodeId(trace->index), iedge);
183184
if (trace->iswitch != rr_iswitch) {
184185
VPR_FATAL_ERROR(VPR_ERROR_ROUTE, "Traceback mismatched switch type: traceback %d rr_graph %d (RR nodes %d -> %d)\n",
185186
trace->iswitch, rr_iswitch,
186187
trace->index, to_node);
187-
}
188+
}*/
188189
break;
189190
}
190191
}

‎vpr/src/base/old_traceback.h

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -19,8 +19,8 @@
1919
* (i.e. special SINKs like the source of a clock tree
2020
* which do not correspond to an actual netlist connection),
2121
* the value for this member should be set to OPEN (-1).
22-
* @param iswitch Index of the switch type used to go from this rr_node to
23-
* the next one in the routing. OPEN if there is no next node
22+
* @param edge_id Index of the edge used to go from this rr_node to
23+
* the next one in the routing. INVALID() if there is no next node
2424
* (i.e. this node is the last one (a SINK) in a branch of the
2525
* net's routing).
2626
* @param next Pointer to the next traceback element in this route.
@@ -30,7 +30,7 @@ struct t_trace {
3030
int index;
3131
int net_pin_index = -1;
3232
//int net_pin_index = OPEN;
33-
short iswitch;
33+
RREdgeId edge_id;
3434
};
3535

3636
/* This class is a friend of RouteTree so it can build one and we don't have to clutter route tree code */
@@ -40,7 +40,7 @@ class TracebackCompat {
4040
static vtr::optional<RouteTree> traceback_to_route_tree(t_trace* head);
4141

4242
private:
43-
static void traceback_to_route_tree_x(t_trace* trace, RouteTree& tree, RouteTreeNode* parent, RRSwitchId parent_switch);
43+
static void traceback_to_route_tree_x(t_trace* trace, RouteTree& tree, RouteTreeNode* parent, RREdgeId parent_edge);
4444
};
4545

4646
t_trace* alloc_trace_data();

‎vpr/src/base/read_route.cpp

Lines changed: 9 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -226,12 +226,13 @@ static void process_nodes(const Netlist<>& net_list, std::ifstream& fp, ClusterN
226226

227227
/*remember the position of the last line in order to go back*/
228228
std::streampos oldpos = fp.tellg();
229-
int inode, layer_num, x, y, layer_num2, x2, y2, ptc, switch_id, net_pin_index, offset;
229+
int inode, layer_num, x, y, layer_num2, x2, y2, ptc, net_pin_index, offset;
230230
std::string prev_type;
231231
int node_count = 0;
232232
std::string input;
233233
std::vector<std::string> tokens;
234234
RRNodeId prev_node(-1);
235+
RREdgeId edge_id;
235236

236237
/*Walk through every line that begins with Node:*/
237238
while (std::getline(fp, input)) {
@@ -326,7 +327,7 @@ static void process_nodes(const Netlist<>& net_list, std::ifstream& fp, ClusterN
326327
}
327328

328329
/*Process switches and pb pin info if it is ipin or opin type*/
329-
if (tokens[6 + offset] != "Switch:") {
330+
if (tokens[6 + offset] != "Edge:") {
330331
/*This is an opin or ipin, process its pin nums*/
331332
auto type = device_ctx.grid.get_physical_type({x, y, layer_num});
332333
if (!is_io_type(type) && (tokens[2] == "IPIN" || tokens[2] == "OPIN")) {
@@ -363,9 +364,9 @@ static void process_nodes(const Netlist<>& net_list, std::ifstream& fp, ClusterN
363364
vpr_throw(VPR_ERROR_ROUTE, filename, lineno,
364365
"%d node does not have correct pins", inode);
365366
}
366-
switch_id = atoi(tokens[8 + offset].c_str());
367+
edge_id = (RREdgeId)atoi(tokens[8 + offset].c_str());
367368
} else {
368-
switch_id = atoi(tokens[7 + offset].c_str());
369+
edge_id = (RREdgeId)atoi(tokens[7 + offset].c_str());
369370
}
370371

371372
/* Process net pin index for sinks *
@@ -388,7 +389,7 @@ static void process_nodes(const Netlist<>& net_list, std::ifstream& fp, ClusterN
388389
head_ptr = alloc_trace_data();
389390
head_ptr->index = inode;
390391
head_ptr->net_pin_index = net_pin_index;
391-
head_ptr->iswitch = switch_id;
392+
head_ptr->edge_id = edge_id;
392393
head_ptr->next = nullptr;
393394
tptr = head_ptr;
394395
node_count++;
@@ -397,7 +398,7 @@ static void process_nodes(const Netlist<>& net_list, std::ifstream& fp, ClusterN
397398
tptr = tptr->next;
398399
tptr->index = inode;
399400
tptr->net_pin_index = net_pin_index;
400-
tptr->iswitch = switch_id;
401+
tptr->edge_id = edge_id;
401402
tptr->next = nullptr;
402403
node_count++;
403404
}
@@ -551,9 +552,7 @@ static bool check_rr_graph_connectivity(RRNodeId prev_node, RRNodeId node) {
551552
return true;
552553
}
553554

554-
// If there are any non-configurable branches return true
555-
short edge_switch = rr_graph.rr_nodes().edge_switch(edge);
556-
if (!(rr_graph.rr_switch_inf(RRSwitchId(edge_switch)).configurable())) return true;
555+
if (!rr_graph.edge_is_configurable(edge)) return true;
557556
}
558557

559558
// If it's part of a non configurable node list, return true
@@ -658,7 +657,7 @@ void print_route(const Netlist<>& net_list,
658657

659658
/* Uncomment line below if you're debugging and want to see the switch types *
660659
* used in the routing. */
661-
fprintf(fp, "Switch: %d", int(tptr->iswitch));
660+
fprintf(fp, "Edge: %d", int(tptr->edge_id));
662661

663662
//Save net pin index for sinks
664663
if (rr_type == SINK) {

‎vpr/src/route/check_route.cpp

Lines changed: 9 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -258,12 +258,14 @@ static void check_switch(const RouteTreeNode& rt_node, size_t num_switch) {
258258
if (!rt_node.parent())
259259
return;
260260

261-
if (size_t(rt_node.parent_switch) >= num_switch) {
262-
VPR_FATAL_ERROR(VPR_ERROR_ROUTE,
263-
"in check_switch: rr_node %d left via switch type %d.\n"
264-
"\tSwitch type is out of range.\n",
265-
size_t(rt_node.inode), size_t(rt_node.parent_switch));
266-
}
261+
// TODO: fix this later
262+
(void)num_switch;
263+
// if (size_t(rt_node.parent_switch) >= num_switch) {
264+
// VPR_FATAL_ERROR(VPR_ERROR_ROUTE,
265+
// "in check_switch: rr_node %d left via switch type %d.\n"
266+
// "\tSwitch type is out of range.\n",
267+
// size_t(rt_node.inode), size_t(rt_node.parent_switch));
268+
// }
267269
}
268270

269271
static bool check_adjacent(RRNodeId from_node, RRNodeId to_node, bool is_flat) {
@@ -894,7 +896,7 @@ bool StubFinder::RecurseTree(const RouteTreeNode& rt_node) {
894896

895897
bool is_stub = true;
896898
for (auto& child_node : rt_node.child_nodes()) {
897-
bool driver_switch_configurable = rr_graph.rr_switch_inf(child_node.parent_switch).configurable();
899+
bool driver_switch_configurable = rr_graph.edge_is_configurable(child_node.parent_edge);
898900
bool child_is_stub = RecurseTree(child_node);
899901
if (!child_is_stub) {
900902
// Because the child was not a stub, this node is not a stub.

‎vpr/src/route/connection_router.cpp

Lines changed: 4 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -698,15 +698,14 @@ void ConnectionRouter<Heap>::evaluate_timing_driven_node_costs(RTExploredNode* t
698698
*/
699699

700700
//Info for the switch connecting from_node to_node (i.e., to->index)
701-
int iswitch = rr_nodes_.edge_switch(to->prev_edge);
702-
bool switch_buffered = rr_switch_inf_[iswitch].buffered();
703-
bool reached_configurably = rr_switch_inf_[iswitch].configurable();
704-
float switch_R = rr_switch_inf_[iswitch].R;
701+
bool switch_buffered = rr_graph_->edge_is_buffered(to->prev_edge);
702+
bool reached_configurably = rr_graph_->edge_is_configurable(to->prev_edge);
703+
float switch_R = rr_graph_->edge_R(to->prev_edge);
705704
// Instead of looking up the delay from the RR switch type info,
706705
// we call edge_delay() method that returns the exact delay calculated
707706
// by adding edge-specific delays to the nominal delay of switch type
708707
float switch_Tdel = rr_graph_->edge_delay(to->prev_edge);
709-
float switch_Cinternal = rr_switch_inf_[iswitch].Cinternal;
708+
float switch_Cinternal = rr_graph_->edge_Cint(to->prev_edge);
710709

711710
//To node info
712711
auto rc_index = rr_graph_->node_rc_index(to->index);

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