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intel/tools/error: Decode compute shaders.

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This is a bit more annoying than your average shader - we need to look
at MEDIA_INTERFACE_DESCRIPTOR_LOAD in the batch buffer, then hop over
to the dynamic state buffer to read the INTERFACE_DESCRIPTOR_DATA, then
hop over to the instruction buffer to decode the program.

Now that we store all the buffers before decoding, we can actually do
this fairly easily.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This commit is contained in:
Kenneth Graunke
2017-10-26 14:54:29 -07:00
parent 7049c38655
commit 866158b4b6
1 changed files with 42 additions and 7 deletions
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src/intel/tools/aubinator_error_decode.c
+42 -7
View File
@@ -233,6 +233,17 @@ disassemble_program(struct gen_disasm *disasm, const char *type,
gen_disasm_disassemble(disasm, instruction_section->data, ksp, stdout);
}
static const struct section *
find_section(const char *str_base_address)
{
uint64_t base_address = strtol(str_base_address, NULL, 16);
for (int s = 0; s < MAX_SECTIONS; s++) {
if (sections[s].gtt_offset == base_address)
return &sections[s];
}
return NULL;
}
static void
decode(struct gen_spec *spec, struct gen_disasm *disasm,
const struct section *section)
@@ -243,6 +254,7 @@ decode(struct gen_spec *spec, struct gen_disasm *disasm,
int length;
struct gen_group *inst;
const struct section *current_instruction_buffer = NULL;
const struct section *current_dynamic_state_buffer = NULL;
for (p = data; p < end; p += length) {
const char *color = option_full_decode ? BLUE_HEADER : NORMAL,
@@ -277,13 +289,9 @@ decode(struct gen_spec *spec, struct gen_disasm *disasm,
do {
if (strcmp(iter.name, "Instruction Base Address") == 0) {
uint64_t instr_base_address = strtol(iter.value, NULL, 16);
current_instruction_buffer = NULL;
for (int s = 0; s < MAX_SECTIONS; s++) {
if (sections[s].gtt_offset == instr_base_address) {
current_instruction_buffer = &sections[s];
}
}
current_instruction_buffer = find_section(iter.value);
} else if (strcmp(iter.name, "Dynamic State Base Address") == 0) {
current_dynamic_state_buffer = find_section(iter.value);
}
} while (gen_field_iterator_next(&iter));
} else if (strcmp(inst->name, "WM_STATE") == 0 ||
@@ -380,6 +388,33 @@ decode(struct gen_spec *spec, struct gen_disasm *disasm,
disassemble_program(disasm, type, current_instruction_buffer, ksp);
printf("\n");
}
} else if (strcmp(inst->name, "MEDIA_INTERFACE_DESCRIPTOR_LOAD") == 0) {
struct gen_field_iterator iter;
gen_field_iterator_init(&iter, inst, p, false);
uint64_t interface_offset = 0;
do {
if (strcmp(iter.name, "Interface Descriptor Data Start Address") == 0) {
interface_offset = strtol(iter.value, NULL, 16);
break;
}
} while (gen_field_iterator_next(&iter));
if (current_dynamic_state_buffer && interface_offset != 0) {
struct gen_group *desc =
gen_spec_find_struct(spec, "INTERFACE_DESCRIPTOR_DATA");
uint32_t *desc_p =
((void *)current_dynamic_state_buffer->data) + interface_offset;
gen_field_iterator_init(&iter, desc, desc_p, false);
do {
if (strcmp(iter.name, "Kernel Start Pointer") == 0) {
uint64_t ksp = strtol(iter.value, NULL, 16);
disassemble_program(disasm, "compute shader",
current_instruction_buffer, ksp);
printf("\n");
break;
}
} while (gen_field_iterator_next(&iter));
}
}
}
}