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Added support for M extension

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This commit is contained in:
felsabbagh3
2019-03-16 23:50:01 -04:00
parent e5f1ed1af4
commit c8af6f60ff
14 changed files with 1064 additions and 1028 deletions
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4
TODO
View File

@@ -1,7 +1,7 @@
* Support for compressed
* Implement Matrix Multiplication
* 1 warp independance
* automatic warp detection
* finish python compiler
* print buffers
* print buffers
* Support for compressed

1
src/core.cpp
View File

@@ -86,7 +86,6 @@ void Core::printStats() const {
cout << "Total steps: " << steps << endl;
cout << "Total insts: " << insts << endl;
for (unsigned i = 0; i < w.size(); ++i) {
cout << "=== Warp " << i << " ===" << endl;
w[i].printStats();

6
src/include/debug.h
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@@ -4,7 +4,7 @@
#ifndef __DEBUG_H
#define __DEBUG_H
//#define USE_DEBUG 9
// #define USE_DEBUG 9
#ifdef USE_DEBUG
#include <iostream>
@@ -12,13 +12,13 @@
#define D(lvl, x) do { \
using namespace std; \
if ((lvl) <= USE_DEBUG) { \
cerr << "DEBUG " << __FILE__ << ':' << dec << __LINE__ << ": " \
cout << "DEBUG " << __FILE__ << ':' << dec << __LINE__ << ": " \
<< x << endl; \
} \
} while(0)
#define D_RAW(x) do { \
std::cerr << x; \
std::cout << x; \
} while (0)
#else

248
src/instruction.cpp
View File

@@ -84,7 +84,7 @@ void Instruction::executeOn(Warp &c) {
/* If I try to execute a privileged instruction in user mode, throw an
exception 3. */
if (instTable[op].privileged && !c.supervisorMode) {
//std::cout << "INTERRUPT SUPERVISOR\n";
std::cout << "INTERRUPT SUPERVISOR\n";
c.interrupt(3);
return;
}
@@ -127,18 +127,30 @@ void Instruction::executeOn(Warp &c) {
stack<DomStackEntry> &domStack(c.domStack);
//std::cout << std::hex << "opcode: " << op << " func3: " << func3 << "\n";
if (op == GPGPU) //std::cout << "OPCODE MATCHED GPGPU\n";
//if (op == GPGPU) //std::cout << "OPCODE MATCHED GPGPU\n";
// If this thread is masked out, don't execute the instruction, unless it's
// a split or join.
// if (((predicated && !pReg[pred]) || !c.tmask[t]) &&
// op != SPLIT && op != JOIN) continue;
predicated = (op == GPGPU) && ((func3 == 7) || (func3 == 2));
bool split = (op == GPGPU) && (func3 == 2);
bool join = (op == GPGPU) && (func3 == 3);
if (((predicated && !reg[pred]) || !c.tmask[t]) && !split && !join) continue;
predicated = (op == GPGPU) && ((func3 == 7) || (func3 == 2));
// printf("Predicated: %d, split: %d, join: %d\n",predicated, split, join );
// printf("%d && ((%d) || (%d))\n",(op == GPGPU), (func3 == 7), (func3 == 2) );
// cout << "before " << op << " = " << GPGPU << "\n";
if (((predicated && !reg[pred]) || !c.tmask[t]) && !split && !join)
{
// cout << "about to continue\n";
continue;
}
// cout << "after\n";
++c.insts;
@@ -148,78 +160,180 @@ void Instruction::executeOn(Warp &c) {
Word temp;
Word data_read;
int op1, op2;
bool m_exten;
// std::cout << "op = " << op << "\n";
// std::cout << "R_INST: " << R_INST << "\n";
switch (op) {
case NOP:
//std::cout << "NOP_INST\n";
break;
case R_INST:
//std::cout << "R_INST\n";
switch (func3)
// std::cout << "R_INST\n";
m_exten = func7 & 0x1;
if (m_exten)
{
case 0:
if (func7)
{
reg[rdest] = reg[rsrc[0]] - reg[rsrc[1]];
reg[rdest].trunc(wordSz);
}
else
{
reg[rdest] = reg[rsrc[0]] + reg[rsrc[1]];
reg[rdest].trunc(wordSz);
}
break;
case 1:
reg[rdest] = reg[rsrc[0]] << reg[rsrc[1]];
reg[rdest].trunc(wordSz);
break;
case 2:
if ( int(reg[rsrc[0]]) < int(reg[rsrc[1]]))
{
reg[rdest] = 1;
}
else
{
reg[rdest] = 0;
}
break;
case 3:
if ( Word_u(reg[rsrc[0]]) < Word_u(reg[rsrc[1]]))
{
reg[rdest] = 1;
}
else
{
reg[rdest] = 0;
}
break;
case 4:
reg[rdest] = reg[rsrc[0]] ^ reg[rsrc[1]];
break;
case 5:
if (func7)
{
reg[rdest] = int(reg[rsrc[0]]) >> int(reg[rsrc[1]]);
reg[rdest].trunc(wordSz);
}
else
{
reg[rdest] = Word_u(reg[rsrc[0]]) >> Word_u(reg[rsrc[1]]);
reg[rdest].trunc(wordSz);
}
break;
case 6:
reg[rdest] = reg[rsrc[0]] | reg[rsrc[1]];
break;
case 7:
reg[rdest] = reg[rsrc[0]] & reg[rsrc[1]];
break;
default:
cout << "ERROR: UNSUPPORTED R INST\n";
exit(1);
// std::cout << "FOUND A MUL/DIV\n";
switch (func3)
{
case 0:
// MUL
// cout << "MUL\n";
reg[rdest] = ((int) reg[rsrc[0]]) * ((int) reg[rsrc[1]]);
break;
case 1:
// MULH
{
int64_t first = (int64_t) reg[rsrc[0]];
if (reg[rsrc[0]] & 0x80000000)
{
first = first | 0xFFFFFFFF00000000;
}
int64_t second = (int64_t) reg[rsrc[1]];
if (reg[rsrc[1]] & 0x80000000)
{
second = second | 0xFFFFFFFF00000000;
}
// cout << "mulh: " << std::dec << first << " * " << second;
uint64_t result = first * second;
reg[rdest] = ( result >> 32) & 0xFFFFFFFF;
// cout << " = " << result << " or " << reg[rdest] << "\n";
}
break;
case 2:
// MULHSU
{
int64_t first = (int64_t) reg[rsrc[0]];
if (reg[rsrc[0]] & 0x80000000)
{
first = first | 0xFFFFFFFF00000000;
}
int64_t second = (int64_t) reg[rsrc[1]];
reg[rdest] = (( first * second ) >> 32) & 0xFFFFFFFF;
}
break;
case 3:
// MULHU
{
uint64_t first = (uint64_t) reg[rsrc[0]];
uint64_t second = (uint64_t) reg[rsrc[1]];
// cout << "MULHU\n";
reg[rdest] = (( first * second) >> 32) & 0xFFFFFFFF;
}
break;
case 4:
// DIV
if (reg[rsrc[1]] == 0)
{
reg[rdest] = -1;
break;
}
// cout << "dividing: " << dec << ((int) reg[rsrc[0]]) << " / " << ((int) reg[rsrc[1]]);
reg[rdest] = ( (int) reg[rsrc[0]]) / ( (int) reg[rsrc[1]]);
// cout << " = " << ((int) reg[rdest]) << "\n";
break;
case 5:
// DIVU
if (reg[rsrc[1]] == 0)
{
reg[rdest] = -1;
break;
}
reg[rdest] = ((uint32_t) reg[rsrc[0]]) / ((uint32_t) reg[rsrc[1]]);
break;
case 6:
// REM
if (reg[rsrc[1]] == 0)
{
reg[rdest] = reg[rsrc[0]];
break;
}
reg[rdest] = ((int) reg[rsrc[0]]) % ((int) reg[rsrc[1]]);
break;
case 7:
// REMU
if (reg[rsrc[1]] == 0)
{
reg[rdest] = reg[rsrc[0]];
break;
}
reg[rdest] = ((uint32_t) reg[rsrc[0]]) % ((uint32_t) reg[rsrc[1]]);
break;
default:
cout << "unsupported MUL/DIV instr\n";
exit(1);
}
}
else
{
// std::cout << "NORMAL R-TYPE\n";
switch (func3)
{
case 0:
if (func7)
{
reg[rdest] = reg[rsrc[0]] - reg[rsrc[1]];
reg[rdest].trunc(wordSz);
}
else
{
reg[rdest] = reg[rsrc[0]] + reg[rsrc[1]];
reg[rdest].trunc(wordSz);
}
break;
case 1:
reg[rdest] = reg[rsrc[0]] << reg[rsrc[1]];
reg[rdest].trunc(wordSz);
break;
case 2:
if ( int(reg[rsrc[0]]) < int(reg[rsrc[1]]))
{
reg[rdest] = 1;
}
else
{
reg[rdest] = 0;
}
break;
case 3:
if ( Word_u(reg[rsrc[0]]) < Word_u(reg[rsrc[1]]))
{
reg[rdest] = 1;
}
else
{
reg[rdest] = 0;
}
break;
case 4:
reg[rdest] = reg[rsrc[0]] ^ reg[rsrc[1]];
break;
case 5:
if (func7)
{
reg[rdest] = int(reg[rsrc[0]]) >> int(reg[rsrc[1]]);
reg[rdest].trunc(wordSz);
}
else
{
reg[rdest] = Word_u(reg[rsrc[0]]) >> Word_u(reg[rsrc[1]]);
reg[rdest].trunc(wordSz);
}
break;
case 6:
reg[rdest] = reg[rsrc[0]] | reg[rsrc[1]];
break;
case 7:
reg[rdest] = reg[rsrc[0]] & reg[rsrc[1]];
break;
default:
cout << "ERROR: UNSUPPORTED R INST\n";
exit(1);
}
}
break;
case L_INST:
//std::cout << "L_INST\n";
memAddr = ((reg[rsrc[0]] + immsrc) & 0xFFFFFFFC);

2
src/riscv_gpgpu/Makefile
View File

@@ -1,6 +1,6 @@
COMP = /opt/riscv/bin/riscv32-unknown-elf-gcc
CC_FLAGS = -march=rv32i -mabi=ilp32 -O0 -Wl,-Bstatic,-T,linker.ld -ffreestanding -nostdlib
CC_FLAGS = -march=rv32im -mabi=ilp32 -O0 -Wl,-Bstatic,-T,linker.ld -ffreestanding -nostdlib
DMP = /opt/riscv/bin/riscv32-unknown-elf-objdump
CPY = /opt/riscv/bin/riscv32-unknown-elf-objcopy

70
src/riscv_gpgpu/gpgpu_test.c
View File

@@ -10,20 +10,31 @@ void matAddition (unsigned, unsigned);
#include "./lib/lib.h"
// unsigned x[] = {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};
// unsigned y[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
// unsigned z[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
// unsigned x[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 , 1 , 1 , 1 , 1 , 1 };
// unsigned y[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
// unsigned z[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
unsigned x[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 , 1 , 1 , 1 , 1 , 1 };
unsigned y[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
unsigned z[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
// unsigned x[] = {2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};
// unsigned y[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1};
// unsigned z[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
#define NUM_WARPS 2
#define NUM_THREADS 8
unsigned x[] = {1,0,0,0,
0,2,0,0,
0,0,3,0,
0,0,0,4};
unsigned y[] = {10,0,0,0,
0,10,0,0,
0,0,10,0,
0,0,0,10};
unsigned z[] = {0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0};
#define MAT_DIM 4
#define NUM_WARPS MAT_DIM
#define NUM_THREADS MAT_DIM
int main()
{
@@ -33,20 +44,21 @@ int main()
queue_initialize(q + i);
}
createWarps(NUM_WARPS, NUM_THREADS, matAddition, x, y, z);
createWarps(NUM_WARPS, NUM_THREADS, matAddition, (void *) x, (void *) y, (void *) z);
wait_for_done(NUM_WARPS);
print_consol("-------------------------\n");
print_consol("FINAL Z\n");
for (int i = 0; i < 16; i++)
for (int j = 0; j < (MAT_DIM * MAT_DIM); j++)
{
int_print(i);
print_consol(": ");
int_print(z[i]);
print_consol("\n");
if ((j % MAT_DIM) == 0) print_consol("\n");
int_print(z[j]);
print_consol(" ");
}
print_consol("-------------------------------\n");
print_consol("\n-------------------------------\n");
return 0;
}
@@ -54,16 +66,22 @@ int main()
void matAddition(unsigned tid, unsigned wid)
{
unsigned * x_ptr = get_1st_arg();
unsigned * y_ptr = get_2nd_arg();
unsigned * z_ptr = get_3rd_arg();
unsigned * x_ptr = (unsigned *) get_1st_arg();
unsigned * y_ptr = (unsigned *) get_2nd_arg();
unsigned * z_ptr = (unsigned *) get_3rd_arg();
unsigned i = (wid * NUM_THREADS) + tid;
__if((i < 11))
z_ptr[i] = x_ptr[i] + y_ptr[i];
__else
__end_if
unsigned total = 0;
for (unsigned place = 0; place < MAT_DIM; place++)
{
unsigned x_i = (wid * MAT_DIM) + place;
unsigned y_i = (MAT_DIM * place) + tid;
total += (x_ptr[x_i] * y_ptr[y_i]);
}
int final_i = (wid * MAT_DIM) + tid;
z_ptr[final_i] = total;
return;

1379
src/riscv_gpgpu/gpgpu_test.dump
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File diff suppressed because it is too large Load Diff

BIN
src/riscv_gpgpu/gpgpu_test.elf
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Binary file not shown.

312
src/riscv_gpgpu/gpgpu_test.hex
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@@ -4,7 +4,7 @@
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@@ -13,145 +13,133 @@
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@@ -159,31 +147,29 @@
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3
src/riscv_gpgpu/lib/hi.sh
View File

@@ -1,3 +0,0 @@
/opt/riscv/bin/riscv32-unknown-elf-gcc -march=rv32i -mabi=ilp32 -O0 -Wl,-Bstatic,-T,linker.ld -ffreestanding -nostdlib queue.c -o queue.elf
/opt/riscv/bin/riscv32-unknown-elf-objdump -D queue.elf > queue.dump
/opt/riscv/bin/riscv32-unknown-elf-objcopy -O ihex queue.elf queue.hex

25
src/riscv_gpgpu/lib/lib.c
View File

@@ -1,8 +1,8 @@
#include "lib.h"
extern void createThreads(unsigned, unsigned, unsigned, unsigned *, unsigned *, unsigned *, unsigned);
extern void wspawn(unsigned, unsigned, unsigned, unsigned *, unsigned *, unsigned *, unsigned);
extern void createThreads(unsigned, unsigned, unsigned, void *, void *, void *, unsigned);
extern void wspawn(unsigned, unsigned, unsigned, void *, void *, void *, unsigned);
extern void print_consol(char *);
extern void printc(char);
@@ -33,9 +33,9 @@ void reschedule_warps()
if (queue_isEmpty(q+curr_warp))
{
print_consol("done: ");
int_print(curr_warp);
print_consol("\n");
// print_consol("done: ");
// int_print(curr_warp);
// print_consol("\n");
done[curr_warp] = true;
ECALL;
}
@@ -75,7 +75,7 @@ void sleep(int t)
void createWarps(unsigned num_Warps, unsigned num_threads, FUNC, unsigned * x_ptr, unsigned * y_ptr, unsigned * z_ptr)
void createWarps(unsigned num_Warps, unsigned num_threads, FUNC, void * x_ptr, void * y_ptr, void * z_ptr)
{
asm __volatile__("addi s2, sp, 0");
int warp = 0;
@@ -108,7 +108,6 @@ void createWarps(unsigned num_Warps, unsigned num_threads, FUNC, unsigned * x_pt
void wait_for_done(unsigned num_wait)
{
print_consol("about to wait for done\n");
bool temp = false;
while (!temp)
{
@@ -121,19 +120,19 @@ void wait_for_done(unsigned num_wait)
}
unsigned * get_1st_arg(void)
void * get_1st_arg(void)
{
register unsigned *ret asm("s7");
register void *ret asm("s7");
return ret;
}
unsigned * get_2nd_arg(void)
void * get_2nd_arg(void)
{
register unsigned *ret asm("s8");
register void *ret asm("s8");
return ret;
}
unsigned * get_3rd_arg(void)
void * get_3rd_arg(void)
{
register unsigned *ret asm("s9");
register void *ret asm("s9");
return ret;
}

8
src/riscv_gpgpu/lib/lib.h
View File

@@ -35,14 +35,14 @@ static bool done[] = {false, false, false, false, false, false, false};
static int main_sp[1];
#define FUNC void (func)(unsigned, unsigned)
void createWarps(unsigned num_Warps, unsigned num_threads, FUNC, unsigned *, unsigned *, unsigned *);
void createWarps(unsigned num_Warps, unsigned num_threads, FUNC, void *, void *, void *);
void reschedule_warps(void);
void int_print(unsigned);
void wait_for_done(unsigned);
unsigned * get_1st_arg(void);
unsigned * get_2nd_arg(void);
unsigned * get_3rd_arg(void);
void * get_1st_arg(void);
void * get_2nd_arg(void);
void * get_3rd_arg(void);
void sleep(int);

6
src/riscv_gpgpu/lib/queue.h
View File

@@ -15,9 +15,9 @@ typedef struct Job_t
unsigned n_threads;
unsigned base_sp;
unsigned func_ptr;
unsigned * x;
unsigned * y;
unsigned * z;
void * x;
void * y;
void * z;
unsigned assigned_warp;
} Job;

28
src/test.sh
View File

@@ -113,3 +113,31 @@ echo ./riscv_tests/rv32ui-p-xor.hex >> results.txt
echo ./riscv_tests/rv32ui-p-xori.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32ui-p-xori.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-div.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-div.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-divu.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-divu.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-mul.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-mul.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-mulh.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-mulh.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-mulhsu.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-mulhsu.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-mulhu.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-mulhu.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-rem.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-rem.hex -s -b >> results.txt
echo ./riscv_tests/rv32um-p-remu.hex >> results.txt
./harptool -E -a rv32i --core ./riscv_tests/rv32um-p-remu.hex -s -b >> results.txt