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/*
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <stdlib.h>
#include "brw_context.h"
#include "brw_inst.h"
#include "brw_eu.h"
#include "gen_disasm.h"
uint64_t INTEL_DEBUG;
struct gen_disasm {
struct gen_device_info devinfo;
};
static bool
is_send(uint32_t opcode)
{
return (opcode == BRW_OPCODE_SEND ||
opcode == BRW_OPCODE_SENDC ||
opcode == BRW_OPCODE_SENDS ||
opcode == BRW_OPCODE_SENDSC );
}
void
gen_disasm_disassemble(struct gen_disasm *disasm, void *assembly,
int start, FILE *out)
{
struct gen_device_info *devinfo = &disasm->devinfo;
bool dump_hex = false;
int offset = start;
/* This loop exits when send-with-EOT or when opcode is 0 */
while (true) {
brw_inst *insn = assembly + offset;
brw_inst uncompacted;
bool compacted = brw_inst_cmpt_control(devinfo, insn);
if (0)
fprintf(out, "0x%08x: ", offset);
if (compacted) {
brw_compact_inst *compacted = (void *)insn;
if (dump_hex) {
fprintf(out, "0x%08x 0x%08x ",
((uint32_t *)insn)[1],
((uint32_t *)insn)[0]);
}
brw_uncompact_instruction(devinfo, &uncompacted, compacted);
insn = &uncompacted;
offset += 8;
} else {
if (dump_hex) {
fprintf(out, "0x%08x 0x%08x 0x%08x 0x%08x ",
((uint32_t *)insn)[3],
((uint32_t *)insn)[2],
((uint32_t *)insn)[1],
((uint32_t *)insn)[0]);
}
offset += 16;
}
brw_disassemble_inst(out, devinfo, insn, compacted);
/* Simplistic, but efficient way to terminate disasm */
uint32_t opcode = brw_inst_opcode(devinfo, insn);
if (opcode == 0 || (is_send(opcode) && brw_inst_eot(devinfo, insn))) {
break;
}
}
}
struct gen_disasm *
gen_disasm_create(int pciid)
{
struct gen_disasm *gd;
gd = malloc(sizeof *gd);
if (gd == NULL)
return NULL;
if (!gen_get_device_info(pciid, &gd->devinfo)) {
free(gd);
return NULL;
}
brw_init_compaction_tables(&gd->devinfo);
return gd;
}
void
gen_disasm_destroy(struct gen_disasm *disasm)
{
free(disasm);
}
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