[Mesa-dev] [PATCH 11/11] intel/aubinator_error_decode: Disassemble shader programs
Matt Turner
mattst88 at gmail.com
Mon May 1 20:54:55 UTC 2017
---
src/intel/Makefile.tools.am | 6 +-
src/intel/tools/aubinator_error_decode.c | 178 ++++++++++++++++++++++++++++++-
2 files changed, 180 insertions(+), 4 deletions(-)
diff --git a/src/intel/Makefile.tools.am b/src/intel/Makefile.tools.am
index 576beea..1175118 100644
--- a/src/intel/Makefile.tools.am
+++ b/src/intel/Makefile.tools.am
@@ -47,11 +47,15 @@ tools_aubinator_LDADD = \
tools_aubinator_error_decode_SOURCES = \
- tools/aubinator_error_decode.c
+ tools/aubinator_error_decode.c \
+ tools/disasm.c \
+ tools/gen_disasm.h
tools_aubinator_error_decode_LDADD = \
common/libintel_common.la \
+ compiler/libintel_compiler.la \
$(top_builddir)/src/util/libmesautil.la \
+ $(PTHREAD_LIBS) \
$(EXPAT_LIBS) \
$(ZLIB_LIBS)
diff --git a/src/intel/tools/aubinator_error_decode.c b/src/intel/tools/aubinator_error_decode.c
index 244bef8..ef77c01 100644
--- a/src/intel/tools/aubinator_error_decode.c
+++ b/src/intel/tools/aubinator_error_decode.c
@@ -40,6 +40,7 @@
#include "common/gen_decoder.h"
#include "util/macros.h"
+#include "gen_disasm.h"
#define CSI "\e["
#define BLUE_HEADER CSI "0;44m"
@@ -209,6 +210,17 @@ print_fault_data(struct gen_device_info *devinfo, uint32_t data1, uint32_t data0
#define CSI "\e["
#define NORMAL CSI "0m"
+struct program {
+ const char *type;
+ const char *command;
+ uint64_t command_offset;
+ uint64_t instruction_base_address;
+ uint64_t ksp;
+};
+
+static struct program programs[4096];
+static int num_programs = 0;
+
static void decode(struct gen_spec *spec,
const char *buffer_name,
const char *ring_name,
@@ -219,6 +231,7 @@ static void decode(struct gen_spec *spec,
uint32_t *p, *end = (data + *count);
int length;
struct gen_group *inst;
+ uint64_t current_instruction_base_address = 0;
for (p = data; p < end; p += length) {
const char *color = option_full_decode ? BLUE_HEADER : NORMAL,
@@ -246,6 +259,127 @@ static void decode(struct gen_spec *spec,
if (strcmp(inst->name, "MI_BATCH_BUFFER_END") == 0)
break;
+
+ if (strcmp(inst->name, "STATE_BASE_ADDRESS") == 0) {
+ struct gen_field_iterator iter;
+ gen_field_iterator_init(&iter, inst, p, false);
+
+ while (gen_field_iterator_next(&iter)) {
+ if (strcmp(iter.name, "Instruction Base Address") == 0) {
+ current_instruction_base_address = strtol(iter.value, NULL, 16);
+ }
+ }
+ } else if (strcmp(inst->name, "WM_STATE") == 0 ||
+ strcmp(inst->name, "3DSTATE_PS") == 0 ||
+ strcmp(inst->name, "3DSTATE_WM") == 0) {
+ struct gen_field_iterator iter;
+ gen_field_iterator_init(&iter, inst, p, false);
+ uint64_t ksp[3] = {0, 0, 0};
+ bool enabled[3] = {false, false, false};
+
+ while (gen_field_iterator_next(&iter)) {
+ if (strncmp(iter.name, "Kernel Start Pointer ",
+ strlen("Kernel Start Pointer ")) == 0) {
+ int idx = iter.name[strlen("Kernel Start Pointer ")] - '0';
+ ksp[idx] = strtol(iter.value, NULL, 16);
+ } else if (strcmp(iter.name, "8 Pixel Dispatch Enable") == 0) {
+ enabled[0] = strcmp(iter.value, "true") == 0;
+ } else if (strcmp(iter.name, "16 Pixel Dispatch Enable") == 0) {
+ enabled[1] = strcmp(iter.value, "true") == 0;
+ } else if (strcmp(iter.name, "32 Pixel Dispatch Enable") == 0) {
+ enabled[2] = strcmp(iter.value, "true") == 0;
+ }
+ }
+
+ /* FINISHME: Broken for multi-program WM_STATE,
+ * which Mesa does not use
+ */
+ if (enabled[0] + enabled[1] + enabled[2] == 1) {
+ const char *type = enabled[0] ? "SIMD8 fragment shader" :
+ enabled[1] ? "SIMD16 fragment shader" :
+ enabled[2] ? "SIMD32 fragment shader" : NULL;
+
+ programs[num_programs++] = (struct program) {
+ .type = type,
+ .command = inst->name,
+ .command_offset = offset,
+ .instruction_base_address = current_instruction_base_address,
+ .ksp = ksp[0],
+ };
+ } else {
+ if (enabled[0]) /* SIMD8 */ {
+ programs[num_programs++] = (struct program) {
+ .type = "SIMD8 fragment shader",
+ .command = inst->name,
+ .command_offset = offset,
+ .instruction_base_address = current_instruction_base_address,
+ .ksp = ksp[0],
+ .ksp = ksp[0], /* SIMD8 shader is specified by ksp[0] */
+ };
+ }
+ if (enabled[1]) /* SIMD16 */ {
+ programs[num_programs++] = (struct program) {
+ .type = "SIMD16 fragment shader",
+ .command = inst->name,
+ .command_offset = offset,
+ .instruction_base_address = current_instruction_base_address,
+ .ksp = ksp[2], /* SIMD16 shader is specified by ksp[2] */
+ };
+ }
+ if (enabled[2]) /* SIMD32 */ {
+ programs[num_programs++] = (struct program) {
+ .type = "SIMD32 fragment shader",
+ .command = inst->name,
+ .command_offset = offset,
+ .instruction_base_address = current_instruction_base_address,
+ .ksp = ksp[1], /* SIMD32 shader is specified by ksp[1] */
+ };
+ }
+ }
+ } else if (strcmp(inst->name, "VS_STATE") == 0 ||
+ strcmp(inst->name, "GS_STATE") == 0 ||
+ strcmp(inst->name, "SF_STATE") == 0 ||
+ strcmp(inst->name, "CLIP_STATE") == 0 ||
+ strcmp(inst->name, "3DSTATE_DS") == 0 ||
+ strcmp(inst->name, "3DSTATE_HS") == 0 ||
+ strcmp(inst->name, "3DSTATE_GS") == 0 ||
+ strcmp(inst->name, "3DSTATE_VS") == 0) {
+ struct gen_field_iterator iter;
+ gen_field_iterator_init(&iter, inst, p, false);
+ uint64_t ksp;
+ bool is_simd8 = false; /* vertex shaders on Gen8+ only */
+ bool is_enabled = true;
+
+ while (gen_field_iterator_next(&iter)) {
+ if (strcmp(iter.name, "Kernel Start Pointer") == 0) {
+ ksp = strtol(iter.value, NULL, 16);
+ } else if (strcmp(iter.name, "SIMD8 Dispatch Enable") == 0) {
+ is_simd8 = strcmp(iter.value, "true") == 0;
+ } else if (strcmp(iter.name, "Function Enable") == 0) {
+ is_enabled = strcmp(iter.value, "true") == 0;
+ }
+ }
+
+ const char *type = strcmp(inst->name, "VS_STATE") == 0 ? "vertex shader" :
+ strcmp(inst->name, "GS_STATE") == 0 ? "geometry shader" :
+ strcmp(inst->name, "SF_STATE") == 0 ? "strips and fans shader" :
+ strcmp(inst->name, "CLIP_STATE") == 0 ? "clip shader" :
+ strcmp(inst->name, "3DSTATE_DS") == 0 ? "tessellation control shader" :
+ strcmp(inst->name, "3DSTATE_HS") == 0 ? "tessellation evaluation shader" :
+ strcmp(inst->name, "3DSTATE_GS") == 0 ? "geometry shader" :
+ strcmp(inst->name, "3DSTATE_VS") == 0 ? is_simd8 ?
+ "SIMD8 vertex shader" : "vec4 vertex shader" : NULL;
+
+ if (is_enabled) {
+ programs[num_programs++] = (struct program) {
+ .type = type,
+ .command = inst->name,
+ .command_offset = offset,
+ .instruction_base_address = current_instruction_base_address,
+ .ksp = ksp,
+ };
+ }
+ }
}
}
@@ -348,6 +482,7 @@ read_data_file(FILE *file)
const char *buffer_name = "batch buffer";
char *ring_name = NULL;
struct gen_device_info devinfo;
+ struct gen_disasm *disasm = NULL;
while (getline(&line, &line_size, file) > 0) {
char *new_ring_name = NULL;
@@ -424,6 +559,22 @@ read_data_file(FILE *file)
buffer_name = "HW Context";
continue;
}
+
+ matched = sscanf(dashes, "--- user = 0x%08x %08x\n",
+ &hi, &lo);
+ if (matched > 0) {
+ new_gtt_offset = hi;
+ if (matched == 2) {
+ new_gtt_offset <<= 32;
+ new_gtt_offset |= lo;
+ }
+
+ gtt_offset = new_gtt_offset;
+ free(ring_name);
+ ring_name = new_ring_name;
+ buffer_name = "user";
+ continue;
+ }
}
if (line[0] == ':' || line[0] == '~') {
@@ -432,9 +583,27 @@ read_data_file(FILE *file)
fprintf(stderr, "ASCII85 decode failed.\n");
exit(1);
}
- decode(spec,
- buffer_name, ring_name,
- gtt_offset, data, &count);
+
+ if (strcmp(buffer_name, "user") == 0) {
+ printf("Disassembly of programs in instruction buffer at "
+ "0x%08"PRIx64":\n", gtt_offset);
+ for (int i = 0; i < num_programs; i++) {
+ if (programs[i].instruction_base_address == gtt_offset) {
+ printf("\n%s (specified by %s at batch offset "
+ "0x%08"PRIx64") at offset 0x%08"PRIx64"\n",
+ programs[i].type,
+ programs[i].command,
+ programs[i].command_offset,
+ programs[i].ksp);
+ gen_disasm_disassemble(disasm, data, programs[i].ksp,
+ stdout);
+ }
+ }
+ } else {
+ decode(spec,
+ buffer_name, ring_name,
+ gtt_offset, data, &count);
+ }
continue;
}
@@ -463,6 +632,8 @@ read_data_file(FILE *file)
return;
}
+ disasm = gen_disasm_create(reg);
+
printf("Detected GEN%i chipset\n", devinfo.gen);
if (xml_path == NULL)
@@ -552,6 +723,7 @@ read_data_file(FILE *file)
buffer_name, ring_name,
gtt_offset, data, &count);
+ gen_disasm_destroy(disasm);
free(data);
free(line);
free(ring_name);
--
2.10.2
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