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Code Issues Releases Wiki Activity

Actually get first BFI_INT patch working.

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This commit is contained in:
Con Kolivas 2011-06-22 00:13:46 +10:00
parent a40003ab62
commit 91e5cef3a5
3 changed files with 38 additions and 34 deletions
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1
cpu-miner.c
View File

@ -814,7 +814,6 @@ static void *gpuminer_thread(void *userdata)
BUFFERSIZE, res, 0, NULL, NULL);
if (unlikely(status != CL_SUCCESS))
{ applog(LOG_ERR, "Error: clEnqueueReadBuffer failed. (clEnqueueReadBuffer)"); goto out;}
for (i = 0; i < 128; i++) {
int found = false;

69
ocl.c
View File

@ -125,29 +125,29 @@ void patch_opcodes(char *w, unsigned remaining)
int s2_rel = (*opcode >> (32 + 9)) & 0x1;
int pred_sel = (*opcode >> 29) & 0x3;
if (!clamp && !dest_rel && !s2_neg && !s2_rel && !pred_sel) {
if (alu_inst == OP3_INST_BFE_INT) {
count_bfe_int++;
} else if (alu_inst == OP3_INST_BFE_UINT) {
count_bfe_uint++;
} else if (alu_inst == OP3_INST_BYTE_ALIGN_INT) {
count_byte_align++;
// patch this instruction to BFI_INT
*opcode &= 0xfffc1fffffffffffUL;
*opcode |= OP3_INST_BFI_INT << (32 + 13);
patched++;
}
if (alu_inst == OP3_INST_BFE_INT) {
count_bfe_int++;
} else if (alu_inst == OP3_INST_BFE_UINT) {
count_bfe_uint++;
} else if (alu_inst == OP3_INST_BYTE_ALIGN_INT) {
count_byte_align++;
// patch this instruction to BFI_INT
*opcode &= 0xfffc1fffffffffffUL;
*opcode |= OP3_INST_BFI_INT << (32 + 13);
patched++;
}
}
if (remaining <= 8) {
break;
break;
}
opcode++;
remaining -= 8;
}
if (opt_debug) {
printf("Potential OP3 instructions identified: "
"%i BFE_INT, %i BFE_UINT, %i BYTE_ALIGN\n",
applog(LOG_DEBUG, "Potential OP3 instructions identified: "
"%i BFE_INT, %i BFE_UINT, %i BYTE_ALIGN",
count_bfe_int, count_bfe_uint, count_byte_align);
printf("Patched a total of %i BFI_INT instructions\n", patched);
applog(LOG_DEBUG, "Patched a total of %i BFI_INT instructions", patched);
}
}
@ -316,31 +316,34 @@ _clState *initCl(int gpu, char *name, size_t nameSize) {
}
err = clGetProgramInfo( clState->program, CL_PROGRAM_BINARIES, sizeof(char *)*nDevices, binaries, NULL );
#if 0
for (i = 0; i < nDevices; i++) {
if (!binaries[i])
continue;
unsigned remaining = binary_sizes[i];
char *w = binaries[i];
const int ati_cal_markers = 17;
int j;
for (j = 0; j < ati_cal_markers; j++) {
if (opt_debug)
printf("At %p (%u rem. bytes), searching ATI CAL marker %i\n",
w, remaining, j);
advance(&w, &remaining, "ATI CAL");
if (remaining < 1)
fprintf(stderr, "Only %u rem. bytes\n", remaining), exit(1);
w++; remaining--;
}
if (remaining < 11)
fprintf(stderr, "Only %u rem. bytes\n", remaining), exit(1);
w += 11; remaining -= 11;
patch_opcodes(w, remaining);
exit (0);
unsigned int start, length;
/* Find 2nd incidence of .text, and copy the program's
* position and length at a fixed offset from that. Then go
* back and find the 2nd incidence of \x7ELF (rewind by one
* from ELF) and then patch the opcocdes */
advance(&w, &remaining, ".text");
w++; remaining--;
advance(&w, &remaining, ".text");
memcpy(&start, w + 285, 4);
memcpy(&length, w + 289, 4);
w = binaries[i]; remaining = binary_sizes[i];
advance(&w, &remaining, "ELF");
w++; remaining--;
advance(&w, &remaining, "ELF");
w--; remaining++;
w += start; remaining -= start;
if (opt_debug)
printf("At %p (%u rem. bytes), to begin patching\n",
w, remaining);
patch_opcodes(w, length);
}
#endif
status = clReleaseProgram(clState->program);
if(status != CL_SUCCESS)
{

2
oclminer.cl
View File

@ -1,5 +1,7 @@
typedef uint z;
#define BITALIGN
#ifdef BITALIGN
#pragma OPENCL EXTENSION cl_amd_media_ops : enable
#define rotr(a, b) amd_bitalign((z)a, (z)a, (z)b)