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Ross Thompson 2024-06-12 12:54:21 -07:00
parent f5d4db68b1
commit 323dbd348e
1 changed files with 35 additions and 8 deletions
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43
fpga/rvvidaemon/rvvidaemon.c
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@ -36,6 +36,7 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
@ -90,7 +91,7 @@ typedef struct {
uint64_t RegValue;
} Reg_t;
void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *insn, RequiredRVVI_t *InstructionData);
void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, RequiredRVVI_t *InstructionData);
void BitShiftArray(uint8_t *dst, uint8_t *src, uint8_t ShiftAmount, int Length);
int main(int argc, char **argv){
@ -138,6 +139,14 @@ int main(int argc, char **argv){
}
printf("Here 4\n");
if(!rvviVersionCheck(RVVI_API_VERSION)){
printf("Bad RVVI_API_VERSION\n");
}
//rvviRefConfigSetString(IDV_CONFIG_MODEL_VENDOR, "riscv.ovpworld.org");
rvviRefInit(NULL);
while(1) {
//printf("listener: Waiting to recvfrom...\n");
numbytes = recvfrom(sockfd, buf, BUF_SIZ, 0, NULL, NULL);
@ -155,16 +164,18 @@ int main(int argc, char **argv){
uint64_t PC;
uint32_t insn;
RequiredRVVI_t InstructionData;
DecodeRVVI(buf + headerbytes, payloadbytes, &PC, &insn, &InstructionData);
DecodeRVVI(buf + headerbytes, payloadbytes, &InstructionData);
}
}
close(sockfd);
return 0;
}
void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *insn, RequiredRVVI_t *InstructionData){
void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, RequiredRVVI_t *InstructionData){
// you know this actually easiser in assembly. :(
uint8_t buf2[BUF_SIZ], buf3[BUF_SIZ];
uint8_t * buf2ptr, *buf3ptr;
@ -174,10 +185,12 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
int PayloadSize = 30;
int Buf2Size = BUF_SIZ - PayloadSize;
uint64_t Mcycle, Minstret;
uint64_t PC;
uint32_t insn;
// unforunately the struct appoarch does not work?!?
*PC = * (uint64_t *) payload;
PC = * (uint64_t *) payload;
payload += 8;
*insn = * (uint32_t *) payload;
insn = * (uint32_t *) payload;
payload += 4;
Mcycle = * (uint64_t *) payload;
payload += 8;
@ -203,7 +216,7 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
CSRCount = (RequiredFlags >> 5) & 0xFFF;
payload += 2;
printf("PC = %lx, insn = %x, Mcycle = %lx, Minstret = %lx, Trap = %hhx, PrivilegeMode = %hhx, GPRWen = %hhx, FPRWen = %hhx, CSRCount == %hx\n", *PC, *insn, Mcycle, Minstret, Trap, PrivilegeMode, GPRWen, FPRWen, CSRCount);
printf("PC = %lx, insn = %x, Mcycle = %lx, Minstret = %lx, Trap = %hhx, PrivilegeMode = %hhx, GPRWen = %hhx, FPRWen = %hhx, CSRCount == %hx\n", PC, insn, Mcycle, Minstret, Trap, PrivilegeMode, GPRWen, FPRWen, CSRCount);
if(GPRWen || FPRWen || (CSRCount != 0)){
// the first bit of payload is the last bit of CSRCount.
ssize_t newPayloadSize = payloadsize - 30;
@ -272,8 +285,8 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
}
}
InstructionData->PC = *PC;
InstructionData->insn = *insn;
InstructionData->PC = PC;
InstructionData->insn = insn;
InstructionData->Mcycle = Mcycle;
InstructionData->Minstret = Minstret;
InstructionData->Trap = Trap;
@ -296,6 +309,20 @@ void DecodeRVVI(uint8_t *payload, ssize_t payloadsize, uint64_t * PC, uint32_t *
printf("!!!!!\n\n");
}
void PrintInstructionData(RequiredRVVI_t *InstructionData){
int CSRIndex;
printf("PC = %lx, insn = %x, Mcycle = %lx, Minstret = %lx, Trap = %hhx, PrivilegeMode = %hhx, GPRWen = %hhx, FPRWen = %hhx, CSRCount == %hx\n",
InstructionData->PC, InstructionData->insn, InstructionData->Mcycle, InstructionData->Minstret, InstructionData->Trap, InstructionData->PrivilegeMode, InstructionData->GPREn, InstructionData->FPREn, InstructionData->CSRCount);
if(InstructionData->GPREn){
}
for(CSRIndex = 0; CSRIndex < 3; CSRIndex++){
if(InstructionData->CSRWen[CSRIndex]){
printf("Wrote CSR %x with value %lx\n", InstructionData->CSRReg[CSRIndex], InstructionData->CSRValue[CSRIndex]);
}
}
}
void BitShiftArray(uint8_t *dst, uint8_t *src, uint8_t ShiftAmount, int Length){
// always shift right by ShiftAmount (0 to 7 bit positions).
// *** this implemenation is very inefficient. improve later.