adds dynamic cycle estimation
This commit is contained in:
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b7478965ab
commit
b86d7a517d
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@ -27,84 +27,84 @@ RV32I:
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@ -356,56 +356,56 @@ RV32M:
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@ -420,7 +420,7 @@ Zca:
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@ -542,14 +542,14 @@ Zca:
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@ -564,7 +564,7 @@ Zca:
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@ -0,0 +1,624 @@
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||||
MULHU:
|
||||
index: 52
|
||||
encoding: 0b00000010000000000011000000110011
|
||||
mask: 0b11111110000000000111000001111111
|
||||
size: 32
|
||||
branch: false
|
||||
delay: 32
|
||||
DIV:
|
||||
index: 53
|
||||
encoding: 0b00000010000000000100000000110011
|
||||
mask: 0b11111110000000000111000001111111
|
||||
size: 32
|
||||
branch: false
|
||||
delay: 33
|
||||
DIVU:
|
||||
index: 54
|
||||
encoding: 0b00000010000000000101000000110011
|
||||
mask: 0b11111110000000000111000001111111
|
||||
size: 32
|
||||
branch: false
|
||||
delay: 33
|
||||
REM:
|
||||
index: 55
|
||||
encoding: 0b00000010000000000110000000110011
|
||||
mask: 0b11111110000000000111000001111111
|
||||
size: 32
|
||||
branch: false
|
||||
delay: 33
|
||||
REMU:
|
||||
index: 56
|
||||
encoding: 0b00000010000000000111000000110011
|
||||
mask: 0b11111110000000000111000001111111
|
||||
size: 32
|
||||
branch: false
|
||||
delay: 33
|
||||
Zca:
|
||||
C__ADDI4SPN:
|
||||
index: 57
|
||||
encoding: 0b0000000000000000
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__LW:
|
||||
index: 58
|
||||
encoding: 0b0100000000000000
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 2
|
||||
C__SW:
|
||||
index: 59
|
||||
encoding: 0b1100000000000000
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__ADDI:
|
||||
index: 60
|
||||
encoding: 0b0000000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__NOP:
|
||||
index: 61
|
||||
encoding: 0b0000000000000001
|
||||
mask: 0b1110111110000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__JAL:
|
||||
index: 62
|
||||
encoding: 0b0010000000000001
|
||||
mask: 0b1110000000000011
|
||||
attributes: [[name:enable, value:1]]
|
||||
size: 16
|
||||
branch: true
|
||||
delay: 1
|
||||
C__LI:
|
||||
index: 63
|
||||
encoding: 0b0100000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__LUI:
|
||||
index: 64
|
||||
encoding: 0b0110000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__ADDI16SP:
|
||||
index: 65
|
||||
encoding: 0b0110000100000001
|
||||
mask: 0b1110111110000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
__reserved_clui:
|
||||
index: 66
|
||||
encoding: 0b0110000000000001
|
||||
mask: 0b1111000001111111
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__SRLI:
|
||||
index: 67
|
||||
encoding: 0b1000000000000001
|
||||
mask: 0b1111110000000011
|
||||
attributes: [[name:enable, value:1]]
|
||||
size: 16
|
||||
branch: false
|
||||
delay: "u_12:12*16+u_6:2"
|
||||
C__SRAI:
|
||||
index: 68
|
||||
encoding: 0b1000010000000001
|
||||
mask: 0b1111110000000011
|
||||
attributes: [[name:enable, value:1]]
|
||||
size: 16
|
||||
branch: false
|
||||
delay: "u_12:12*16+u_6:2"
|
||||
C__ANDI:
|
||||
index: 69
|
||||
encoding: 0b1000100000000001
|
||||
mask: 0b1110110000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__SUB:
|
||||
index: 70
|
||||
encoding: 0b1000110000000001
|
||||
mask: 0b1111110001100011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__XOR:
|
||||
index: 71
|
||||
encoding: 0b1000110000100001
|
||||
mask: 0b1111110001100011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__OR:
|
||||
index: 72
|
||||
encoding: 0b1000110001000001
|
||||
mask: 0b1111110001100011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__AND:
|
||||
index: 73
|
||||
encoding: 0b1000110001100001
|
||||
mask: 0b1111110001100011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__J:
|
||||
index: 74
|
||||
encoding: 0b1010000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: true
|
||||
delay: 1
|
||||
C__BEQZ:
|
||||
index: 75
|
||||
encoding: 0b1100000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: true
|
||||
delay: [1,2]
|
||||
C__BNEZ:
|
||||
index: 76
|
||||
encoding: 0b1110000000000001
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: true
|
||||
delay: [1,2]
|
||||
C__SLLI:
|
||||
index: 77
|
||||
encoding: 0b0000000000000010
|
||||
mask: 0b1111000000000011
|
||||
attributes: [[name:enable, value:1]]
|
||||
size: 16
|
||||
branch: false
|
||||
delay: "u_12:12*16+u_6:2"
|
||||
C__LWSP:
|
||||
index: 78
|
||||
encoding: 0b0100000000000010
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 2
|
||||
C__MV:
|
||||
index: 79
|
||||
encoding: 0b1000000000000010
|
||||
mask: 0b1111000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__JR:
|
||||
index: 80
|
||||
encoding: 0b1000000000000010
|
||||
mask: 0b1111000001111111
|
||||
size: 16
|
||||
branch: true
|
||||
delay: 1
|
||||
__reserved_cmv:
|
||||
index: 81
|
||||
encoding: 0b1000000000000010
|
||||
mask: 0b1111111111111111
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__ADD:
|
||||
index: 82
|
||||
encoding: 0b1001000000000010
|
||||
mask: 0b1111000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__JALR:
|
||||
index: 83
|
||||
encoding: 0b1001000000000010
|
||||
mask: 0b1111000001111111
|
||||
size: 16
|
||||
branch: true
|
||||
delay: 1
|
||||
C__EBREAK:
|
||||
index: 84
|
||||
encoding: 0b1001000000000010
|
||||
mask: 0b1111111111111111
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
C__SWSP:
|
||||
index: 85
|
||||
encoding: 0b1100000000000010
|
||||
mask: 0b1110000000000011
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
DII:
|
||||
index: 86
|
||||
encoding: 0b0000000000000000
|
||||
mask: 0b1111111111111111
|
||||
size: 16
|
||||
branch: false
|
||||
delay: 1
|
||||
|
|
@ -1,4 +1,3 @@
|
|||
|
||||
/*******************************************************************************
|
||||
* Copyright (C) 2017 - 2023, MINRES Technologies GmbH
|
||||
* All rights reserved.
|
||||
|
@ -34,6 +33,7 @@
|
|||
******************************************************************************/
|
||||
|
||||
#include "cycle_estimate.h"
|
||||
#include <iss/plugin/calculator.h>
|
||||
#include <yaml-cpp/yaml.h>
|
||||
|
||||
#include <iss/arch_if.h>
|
||||
|
@ -48,11 +48,12 @@ iss::plugin::cycle_estimate::cycle_estimate(string const& config_file_name)
|
|||
{
|
||||
}
|
||||
|
||||
iss::plugin::cycle_estimate::~cycle_estimate() {
|
||||
}
|
||||
iss::plugin::cycle_estimate::~cycle_estimate() = default;
|
||||
|
||||
bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if& vm) {
|
||||
instr_if = vm.get_arch()->get_instrumentation_if();
|
||||
assert(instr_if && "No instrumentation interface available but callback executed");
|
||||
reg_base_ptr = reinterpret_cast<uint32_t*>(vm.get_arch()->get_regs_base_ptr());
|
||||
if(!instr_if) return false;
|
||||
const string core_name = instr_if->core_type_name();
|
||||
if (config_file_name.length() > 0) {
|
||||
|
@ -67,17 +68,23 @@ bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if&
|
|||
auto isa_subset = p.first;
|
||||
auto instructions = p.second;
|
||||
for (auto const& instr : instructions) {
|
||||
instr_desc res;
|
||||
auto idx = instr.second["index"].as<unsigned>();
|
||||
if(delays.size()<=idx)
|
||||
delays.resize(idx+1);
|
||||
auto& res = delays[idx];
|
||||
res.is_branch = instr.second["branch"].as<bool>();
|
||||
auto delay = instr.second["delay"];
|
||||
if(delay.IsSequence()) {
|
||||
res.not_taken = delay[0].as<uint64_t>();
|
||||
res.taken = delay[1].as<uint64_t>();
|
||||
} else {
|
||||
res.not_taken = delay.as<uint64_t>();
|
||||
res.taken = res.not_taken;
|
||||
try {
|
||||
res.not_taken = delay.as<uint64_t>();
|
||||
res.taken = res.not_taken;
|
||||
} catch (const YAML::BadConversion& e) {
|
||||
res.f = iss::plugin::calculator(reg_base_ptr, delay.as<std::string>());
|
||||
}
|
||||
}
|
||||
delays.push_back(std::move(res));
|
||||
}
|
||||
}
|
||||
} catch (YAML::ParserException &e) {
|
||||
|
@ -90,15 +97,18 @@ bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if&
|
|||
}
|
||||
}
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
void iss::plugin::cycle_estimate::callback(instr_info_t instr_info) {
|
||||
assert(instr_if && "No instrumentation interface available but callback executed");
|
||||
auto entry = delays[instr_info.instr_id];
|
||||
bool taken = instr_if->is_branch_taken();
|
||||
if (taken && (entry.taken > 1))
|
||||
instr_if->update_last_instr_cycles(entry.taken);
|
||||
else if (entry.not_taken > 1)
|
||||
instr_if->update_last_instr_cycles(entry.not_taken);
|
||||
size_t instr_id = instr_info.instr_id;
|
||||
auto entry = delays[instr_id];
|
||||
if(instr_info.phase_id==PRE_SYNC) {
|
||||
if(entry.f)
|
||||
current_delay = entry.f(instr_if->get_instr_word());
|
||||
} else {
|
||||
if(!entry.f)
|
||||
current_delay = instr_if->is_branch_taken()? entry.taken: entry.not_taken;
|
||||
if(current_delay>1)
|
||||
instr_if->update_last_instr_cycles(current_delay);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -40,24 +40,20 @@
|
|||
#include <string>
|
||||
#include <unordered_map>
|
||||
#include <vector>
|
||||
#include <functional>
|
||||
|
||||
namespace iss {
|
||||
|
||||
namespace plugin {
|
||||
|
||||
class cycle_estimate: public vm_plugin {
|
||||
BEGIN_BF_DECL(instr_desc, uint32_t)
|
||||
BF_FIELD(taken, 24, 8)
|
||||
BF_FIELD(not_taken, 16, 8)
|
||||
BF_FIELD(is_branch, 8, 8)
|
||||
BF_FIELD(size, 0, 8)
|
||||
instr_desc(uint32_t size, uint32_t taken, uint32_t not_taken, bool branch): instr_desc() {
|
||||
this->size=size;
|
||||
this->taken=taken;
|
||||
this->not_taken=not_taken;
|
||||
this->is_branch=branch;
|
||||
}
|
||||
END_BF_DECL();
|
||||
struct instr_desc {
|
||||
size_t size;
|
||||
bool is_branch;
|
||||
unsigned not_taken;
|
||||
unsigned taken;
|
||||
std::function<unsigned(uint64_t)> f;
|
||||
};
|
||||
|
||||
public:
|
||||
cycle_estimate() = delete;
|
||||
|
@ -76,13 +72,15 @@ public:
|
|||
|
||||
bool registration(const char *const version, vm_if &arch) override;
|
||||
|
||||
sync_type get_sync() override { return POST_SYNC; };
|
||||
sync_type get_sync() override { return ALL_SYNC; };
|
||||
|
||||
void callback(instr_info_t instr_info) override;
|
||||
|
||||
private:
|
||||
iss::instrumentation_if *instr_if;
|
||||
iss::instrumentation_if *instr_if{nullptr};
|
||||
uint32_t* reg_base_ptr {nullptr};
|
||||
std::vector<instr_desc> delays;
|
||||
unsigned current_delay{0};
|
||||
struct pair_hash {
|
||||
size_t operator()(const std::pair<uint64_t, uint64_t> &p) const {
|
||||
std::hash<uint64_t> hash;
|
||||
|
|
Loading…
Reference in New Issue