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instruction fetch unit finally DONE #37

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Jun 23, 2020
Merged

instruction fetch unit finally DONE #37

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10 changes: 7 additions & 3 deletions src/core/core.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,11 @@ Core::Core(const ParseXML *XML_interface,

clockRate = coredynp.clockRate;
executionTime = coredynp.executionTime;
ifu = new InstFetchU(XML, ithCore, &interface_ip, coredynp, exit_flag);
ifu = new InstFetchU();
ifu->set_params(XML, ithCore, &interface_ip, coredynp, exit_flag);
ifu->computeArea();
ifu->set_stats(XML);

lsu = new LoadStoreU(XML, ithCore, &interface_ip, coredynp, exit_flag);
mmu = new MemManU();
mmu->set_params(XML, ithCore, &interface_ip, coredynp);
Expand Down Expand Up @@ -155,7 +159,7 @@ void Core::computeEnergy(bool is_tdp) {
double rtp_pipeline_coe;
double num_units = 4.0;
if (is_tdp) {
ifu->computeEnergy(is_tdp);
ifu->computeDynamicPower(is_tdp);
lsu->computeEnergy(is_tdp);
mmu->computeDynamicPower(is_tdp);
exu.computeDynamicPower(is_tdp);
Expand Down Expand Up @@ -245,7 +249,7 @@ void Core::computeEnergy(bool is_tdp) {
}

} else {
ifu->computeEnergy(is_tdp);
ifu->computeDynamicPower(is_tdp);
lsu->computeEnergy(is_tdp);
mmu->computeDynamicPower(is_tdp);
exu.computeDynamicPower(is_tdp);
Expand Down
103 changes: 68 additions & 35 deletions src/core/instfetch.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -42,14 +42,16 @@
#include <iostream>
#include <string>

InstFetchU::InstFetchU(const ParseXML *XML_interface,
void InstFetchU::set_params(const ParseXML *XML_interface,
int ithCore_,
InputParameter *interface_ip_,
const CoreDynParam &dyn_p_,
bool exist_)
: XML(XML_interface), ithCore(ithCore_), interface_ip(*interface_ip_),
coredynp(dyn_p_),
exist(exist_) {
bool exist_){
XML=XML_interface; ithCore=ithCore_; interface_ip=*interface_ip_;
coredynp=dyn_p_;
exist=exist_;


if (!exist)
return;
int idx, tag, data, size, line, assoc, banks;
Expand Down Expand Up @@ -105,13 +107,10 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
icache.caches.computeArea();

scktRatio = g_tp.sckt_co_eff;
chip_PR_overhead = g_tp.chip_layout_overhead;
macro_PR_overhead = g_tp.macro_layout_overhead;
icache.area.set_area(icache.area.get_area() +
icache.caches.local_result.area);
area.set_area(area.get_area() + icache.caches.local_result.area);
// output_data_csv(icache.caches.local_result);

/*
Expand Down Expand Up @@ -162,9 +161,6 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
icache.missb.computeArea();
icache.area.set_area(icache.area.get_area() + icache.missb.local_result.area);
area.set_area(area.get_area() + icache.missb.local_result.area);
// output_data_csv(icache.missb.local_result);

// fill buffer
Expand Down Expand Up @@ -200,9 +196,6 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
icache.ifb.computeArea();
icache.area.set_area(icache.area.get_area() + icache.ifb.local_result.area);
area.set_area(area.get_area() + icache.ifb.local_result.area);
// output_data_csv(icache.ifb.local_result);

// prefetch buffer
Expand Down Expand Up @@ -242,10 +235,6 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
icache.prefetchb.computeArea();
icache.area.set_area(icache.area.get_area() +
icache.prefetchb.local_result.area);
area.set_area(area.get_area() + icache.prefetchb.local_result.area);
// output_data_csv(icache.prefetchb.local_result);

// Instruction buffer
Expand Down Expand Up @@ -292,9 +281,6 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
IB.computeArea();
IB.area.set_area(IB.area.get_area() + IB.local_result.area);
area.set_area(area.get_area() + IB.local_result.area);
// output_data_csv(IB.IB.local_result);

// inst_decoder.opcode_length = XML->sys.core[ithCore].opcode_width;
Expand Down Expand Up @@ -360,15 +346,9 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
Core_device,
coredynp.opt_local,
coredynp.core_ty);
BTB.computeArea();
BTB.area.set_area(BTB.area.get_area() + BTB.local_result.area);
area.set_area(area.get_area() + BTB.local_result.area);
/// cout<<"area="<<area<<endl;

BPT.set_params(XML, ithCore, &interface_ip, coredynp);
BPT.computeArea();
BPT.set_stats(XML);
area.set_area(area.get_area() + BPT.area.get_area());

}

ID_inst.set_params(is_default,
Expand All @@ -394,13 +374,56 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
coredynp.x86,
Core_device,
coredynp.core_ty);

ID_misc.computeArea();
ID_misc.computeDynamicPower();
init_params = true;
}

void InstFetchU::set_stats(const ParseXML *XML_interface){
if (coredynp.predictionW > 0) {
BPT.set_stats(XML);
}
init_stats = true;
}

void InstFetchU::computeArea(){
if (!init_params) {
std::cerr << "[ InstFetchU ] Error: must set params before calling "
"computeArea()\n";

exit(1);
}
icache.caches.computeArea();
icache.area.set_area(icache.area.get_area() +
icache.caches.local_result.area);
area.set_area(area.get_area() + icache.caches.local_result.area);

icache.missb.computeArea();
icache.area.set_area(icache.area.get_area() + icache.missb.local_result.area);
area.set_area(area.get_area() + icache.missb.local_result.area);

icache.ifb.computeArea();
icache.area.set_area(icache.area.get_area() + icache.ifb.local_result.area);
area.set_area(area.get_area() + icache.ifb.local_result.area);

icache.prefetchb.computeArea();
icache.area.set_area(icache.area.get_area() +
icache.prefetchb.local_result.area);
area.set_area(area.get_area() + icache.prefetchb.local_result.area);

IB.computeArea();
IB.area.set_area(IB.area.get_area() + IB.local_result.area);
area.set_area(area.get_area() + IB.local_result.area);

if (coredynp.predictionW > 0) {
BPT.computeArea();
area.set_area(area.get_area() + BPT.area.get_area());
BTB.computeArea();
BTB.area.set_area(BTB.area.get_area() + BTB.local_result.area);
area.set_area(area.get_area() + BTB.local_result.area);
}

ID_misc.computeArea();
ID_operand.computeArea();
ID_operand.computeDynamicPower();
ID_inst.computeArea();
ID_inst.computeDynamicPower();

// TODO: X86 decoder should decode the inst in cyclic mode under the control
// of squencer. So the dynamic power should be multiplied by a few times.
Expand All @@ -410,9 +433,15 @@ InstFetchU::InstFetchU(const ParseXML *XML_interface,
coredynp.decodeW);
}

void InstFetchU::computeEnergy(bool is_tdp) {
void InstFetchU::computeDynamicPower(bool is_tdp) {

if (!exist)
return;
if (!init_stats) {
std::cerr << "[ InstFetchU ] Error: must set params before calling "
"computeDynamicPower()\n";
exit(1);
}
if (is_tdp) {
// init stats for Peak
icache.caches.stats_t.readAc.access =
Expand Down Expand Up @@ -559,6 +588,10 @@ void InstFetchU::computeEnergy(bool is_tdp) {
// (icache.missb.local_result.power +
// icache.ifb.local_result.power +
// icache.prefetchb.local_result.power)*pppm_Isub;

ID_misc.computeDynamicPower();
ID_operand.computeDynamicPower();
ID_inst.computeDynamicPower();
icache.power =
icache.power_t +
(icache.caches.local_result.power + icache.missb.local_result.power +
Expand Down
11 changes: 9 additions & 2 deletions src/core/instfetch.h
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Original file line number Diff line number Diff line change
Expand Up @@ -61,14 +61,21 @@ class InstFetchU : public Component {
inst_decoder ID_misc;
bool exist;

InstFetchU(const ParseXML *XML_interface,
InstFetchU(){init_params = false; init_stats = false;};
void set_stats(const ParseXML *XML_interface);
void set_params(const ParseXML *XML_interface,
int ithCore_,
InputParameter *interface_ip_,
const CoreDynParam &dyn_p_,
bool exsit = true);
void computeEnergy(bool is_tdp = true);
void computeArea();
void computeDynamicPower(bool is_tdp = true);
void displayEnergy(uint32_t indent = 0, int plevel = 100, bool is_tdp = true);
~InstFetchU();

private:
bool init_params;
bool init_stats;
};

#endif // __INST_FETCH_U_H__