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broadcom/genxml: Introduce a V3D packet/struct decoder.

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This is copied from Intel's XML decoder, modified to handle V3D's
byte-oriented packets.

v2: Squash in robher's fixes for Android
This commit is contained in:
Eric Anholt
2017-07-12 13:15:34 -07:00
parent 12b55c8e27
commit 5b102160ae
9 changed files with 1066 additions and 0 deletions
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35
src/broadcom/Android.cle.mk Normal file
View File

@@ -0,0 +1,35 @@
# Copyright © 2016 Intel Corporation
# Copyright © 2016 Mauro Rossi <issor.oruam@gmail.com>
#
# 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 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 $(CLEAR_VARS)
LOCAL_MODULE := libmesa_broadcom_cle
LOCAL_MODULE_CLASS := STATIC_LIBRARIES
LOCAL_SRC_FILES := $(BROADCOM_DECODER_FILES)
LOCAL_STATIC_LIBRARIES := libmesa_broadcom_genxml
LOCAL_SHARED_LIBRARIES := libexpat libz
include $(MESA_COMMON_MK)
include $(BUILD_STATIC_LIBRARY)

6
src/broadcom/Android.genxml.mk
View File

@@ -50,8 +50,14 @@ $(intermediates)/broadcom/cle/v3d_packet_v21_pack.h: PRIVATE_XML := $(LOCAL_PATH
$(intermediates)/broadcom/cle/v3d_packet_v21_pack.h: $(LOCAL_PATH)/cle/v3d_packet_v21.xml $(LOCAL_PATH)/cle/gen_pack_header.py $(intermediates)/broadcom/cle/v3d_packet_v21_pack.h: $(LOCAL_PATH)/cle/v3d_packet_v21.xml $(LOCAL_PATH)/cle/gen_pack_header.py
$(call header-gen) $(call header-gen)
$(intermediates)/broadcom/cle/v3d_xml.h: $(addprefix $(MESA_TOP)/src/broadcom/,$(BROADCOM_GENXML_XML_FILES)) $(MESA_TOP)/src/intel/genxml/gen_zipped_file.py
@mkdir -p $(dir $@)
@echo "Gen Header: $(PRIVATE_MODULE) <= $(notdir $(@))"
$(hide) $(MESA_PYTHON2) $(MESA_TOP)/src/intel/genxml/gen_zipped_file.py $(addprefix $(MESA_TOP)/src/broadcom/,$(BROADCOM_GENXML_XML_FILES)) > $@ || (rm -f $@; false)
LOCAL_EXPORT_C_INCLUDE_DIRS := \ LOCAL_EXPORT_C_INCLUDE_DIRS := \
$(MESA_TOP)/src/broadcom/cle \ $(MESA_TOP)/src/broadcom/cle \
$(intermediates)/broadcom/cle \
$(intermediates) $(intermediates)
include $(MESA_COMMON_MK) include $(MESA_COMMON_MK)

1
src/broadcom/Android.mk
View File

@@ -26,3 +26,4 @@ LOCAL_PATH := $(call my-dir)
include $(LOCAL_PATH)/Makefile.sources include $(LOCAL_PATH)/Makefile.sources
include $(LOCAL_PATH)/Android.genxml.mk include $(LOCAL_PATH)/Android.genxml.mk
include $(LOCAL_PATH)/Android.cle.mk

8
src/broadcom/Makefile.am
View File

@@ -20,6 +20,13 @@
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE. # IN THE SOFTWARE.
AM_CPPFLAGS = \
-I$(top_srcdir)/include \
-I$(top_builddir)/src \
-I$(top_srcdir)/src \
$(VALGRIND_CFLAGS) \
$(DEFINES)
include Makefile.sources include Makefile.sources
lib_LTLIBRARIES = lib_LTLIBRARIES =
@@ -38,5 +45,6 @@ MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
PYTHON_GEN = $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS) PYTHON_GEN = $(AM_V_GEN)$(PYTHON2) $(PYTHON_FLAGS)
include Makefile.genxml.am include Makefile.genxml.am
include Makefile.cle.am
CLEANFILES += $(BUILT_SOURCES) CLEANFILES += $(BUILT_SOURCES)

4
src/broadcom/Makefile.cle.am Normal file
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@@ -0,0 +1,4 @@
noinst_LTLIBRARIES += cle/libbroadcom_cle.la
cle_libbroadcom_cle_la_CFLAGS = $(AM_CFLAGS)
cle_libbroadcom_cle_la_SOURCES = $(BROADCOM_DECODER_FILES)

5
src/broadcom/Makefile.genxml.am
View File

@@ -32,6 +32,11 @@ $(BROADCOM_GENXML_GENERATED_FILES): cle/gen_pack_header.py
$(MKDIR_GEN) $(MKDIR_GEN)
$(PYTHON_GEN) $(srcdir)/cle/gen_pack_header.py $< > $@ || ($(RM) $@; false) $(PYTHON_GEN) $(srcdir)/cle/gen_pack_header.py $< > $@ || ($(RM) $@; false)
GEN_ZIPPED = $(srcdir)/../intel/genxml/gen_zipped_file.py
cle/v3d_xml.h: $(GEN_ZIPPED) $(BROADCOM_GENXML_XML_FILES)
$(MKDIR_GEN)
$(PYTHON_GEN) $(GEN_ZIPPED) $(BROADCOM_GENXML_XML_FILES:%=$(srcdir)/%) > $@ || ($(RM) $@; false)
EXTRA_DIST += \ EXTRA_DIST += \
cle/gen_pack_header.py \ cle/gen_pack_header.py \
$() $()

6
src/broadcom/Makefile.sources
View File

@@ -1,5 +1,6 @@
BROADCOM_GENXML_GENERATED_FILES = \ BROADCOM_GENXML_GENERATED_FILES = \
cle/v3d_packet_v21_pack.h \ cle/v3d_packet_v21_pack.h \
cle/v3d_xml.h \
$() $()
BROADCOM_GENXML_XML_FILES = \ BROADCOM_GENXML_XML_FILES = \
@@ -11,3 +12,8 @@ BROADCOM_FILES = \
common/v3d_device_info.h \ common/v3d_device_info.h \
$() $()
BROADCOM_DECODER_FILES = \
cle/v3d_decoder.c \
cle/v3d_decoder.h \
$()

855
src/broadcom/cle/v3d_decoder.c Normal file
View File

@@ -0,0 +1,855 @@
/*
* Copyright © 2016 Intel Corporation
* Copyright © 2017 Broadcom
*
* 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 <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <expat.h>
#include <inttypes.h>
#include <zlib.h>
#include <util/macros.h>
#include <util/ralloc.h>
#include "v3d_decoder.h"
#include "v3d_packet_helpers.h"
#include "v3d_xml.h"
struct v3d_spec {
uint32_t ver;
int ncommands;
struct v3d_group *commands[256];
int nstructs;
struct v3d_group *structs[256];
int nregisters;
struct v3d_group *registers[256];
int nenums;
struct v3d_enum *enums[256];
};
struct location {
const char *filename;
int line_number;
};
struct parser_context {
XML_Parser parser;
int foo;
struct location loc;
struct v3d_group *group;
struct v3d_enum *enoom;
int nvalues;
struct v3d_value *values[256];
struct v3d_spec *spec;
};
const char *
v3d_group_get_name(struct v3d_group *group)
{
return group->name;
}
uint8_t
v3d_group_get_opcode(struct v3d_group *group)
{
return group->opcode;
}
struct v3d_group *
v3d_spec_find_struct(struct v3d_spec *spec, const char *name)
{
for (int i = 0; i < spec->nstructs; i++)
if (strcmp(spec->structs[i]->name, name) == 0)
return spec->structs[i];
return NULL;
}
struct v3d_group *
v3d_spec_find_register(struct v3d_spec *spec, uint32_t offset)
{
for (int i = 0; i < spec->nregisters; i++)
if (spec->registers[i]->register_offset == offset)
return spec->registers[i];
return NULL;
}
struct v3d_group *
v3d_spec_find_register_by_name(struct v3d_spec *spec, const char *name)
{
for (int i = 0; i < spec->nregisters; i++) {
if (strcmp(spec->registers[i]->name, name) == 0)
return spec->registers[i];
}
return NULL;
}
struct v3d_enum *
v3d_spec_find_enum(struct v3d_spec *spec, const char *name)
{
for (int i = 0; i < spec->nenums; i++)
if (strcmp(spec->enums[i]->name, name) == 0)
return spec->enums[i];
return NULL;
}
static void __attribute__((noreturn))
fail(struct location *loc, const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
fprintf(stderr, "%s:%d: error: ",
loc->filename, loc->line_number);
vfprintf(stderr, msg, ap);
fprintf(stderr, "\n");
va_end(ap);
exit(EXIT_FAILURE);
}
static void *
fail_on_null(void *p)
{
if (p == NULL) {
fprintf(stderr, "aubinator: out of memory\n");
exit(EXIT_FAILURE);
}
return p;
}
static char *
xstrdup(const char *s)
{
return fail_on_null(strdup(s));
}
static void *
zalloc(size_t s)
{
return calloc(s, 1);
}
static void *
xzalloc(size_t s)
{
return fail_on_null(zalloc(s));
}
/* We allow fields to have either a bit index, or append "b" for a byte index.
*/
static bool
is_byte_offset(const char *value)
{
return value[strlen(value) - 1] == 'b';
}
static void
get_group_offset_count(const char **atts, uint32_t *offset, uint32_t *count,
uint32_t *size, bool *variable)
{
char *p;
int i;
for (i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "count") == 0) {
*count = strtoul(atts[i + 1], &p, 0);
if (*count == 0)
*variable = true;
} else if (strcmp(atts[i], "start") == 0) {
*offset = strtoul(atts[i + 1], &p, 0);
} else if (strcmp(atts[i], "size") == 0) {
*size = strtoul(atts[i + 1], &p, 0);
}
}
return;
}
static struct v3d_group *
create_group(struct parser_context *ctx,
const char *name,
const char **atts,
struct v3d_group *parent)
{
struct v3d_group *group;
group = xzalloc(sizeof(*group));
if (name)
group->name = xstrdup(name);
group->spec = ctx->spec;
group->group_offset = 0;
group->group_count = 0;
group->variable = false;
if (parent) {
group->parent = parent;
get_group_offset_count(atts,
&group->group_offset,
&group->group_count,
&group->group_size,
&group->variable);
}
return group;
}
static struct v3d_enum *
create_enum(struct parser_context *ctx, const char *name, const char **atts)
{
struct v3d_enum *e;
e = xzalloc(sizeof(*e));
if (name)
e->name = xstrdup(name);
e->nvalues = 0;
return e;
}
static void
get_register_offset(const char **atts, uint32_t *offset)
{
char *p;
int i;
for (i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "num") == 0)
*offset = strtoul(atts[i + 1], &p, 0);
}
return;
}
static void
get_start_end_pos(int *start, int *end)
{
/* start value has to be mod with 32 as we need the relative
* start position in the first DWord. For the end position, add
* the length of the field to the start position to get the
* relative postion in the 64 bit address.
*/
if (*end - *start > 32) {
int len = *end - *start;
*start = *start % 32;
*end = *start + len;
} else {
*start = *start % 32;
*end = *end % 32;
}
return;
}
static inline uint64_t
mask(int start, int end)
{
uint64_t v;
v = ~0ULL >> (63 - end + start);
return v << start;
}
static inline uint64_t
field(uint64_t value, int start, int end)
{
get_start_end_pos(&start, &end);
return (value & mask(start, end)) >> (start);
}
static inline uint64_t
field_address(uint64_t value, int start, int end)
{
/* no need to right shift for address/offset */
get_start_end_pos(&start, &end);
return (value & mask(start, end));
}
static struct v3d_type
string_to_type(struct parser_context *ctx, const char *s)
{
int i, f;
struct v3d_group *g;
struct v3d_enum *e;
if (strcmp(s, "int") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_INT };
else if (strcmp(s, "uint") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_UINT };
else if (strcmp(s, "bool") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_BOOL };
else if (strcmp(s, "float") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_FLOAT };
else if (strcmp(s, "address") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_ADDRESS };
else if (strcmp(s, "offset") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_OFFSET };
else if (sscanf(s, "u%d.%d", &i, &f) == 2)
return (struct v3d_type) { .kind = V3D_TYPE_UFIXED, .i = i, .f = f };
else if (sscanf(s, "s%d.%d", &i, &f) == 2)
return (struct v3d_type) { .kind = V3D_TYPE_SFIXED, .i = i, .f = f };
else if (g = v3d_spec_find_struct(ctx->spec, s), g != NULL)
return (struct v3d_type) { .kind = V3D_TYPE_STRUCT, .v3d_struct = g };
else if (e = v3d_spec_find_enum(ctx->spec, s), e != NULL)
return (struct v3d_type) { .kind = V3D_TYPE_ENUM, .v3d_enum = e };
else if (strcmp(s, "mbo") == 0)
return (struct v3d_type) { .kind = V3D_TYPE_MBO };
else
fail(&ctx->loc, "invalid type: %s", s);
}
static struct v3d_field *
create_field(struct parser_context *ctx, const char **atts)
{
struct v3d_field *field;
char *p;
int i;
uint32_t size = 0;
field = xzalloc(sizeof(*field));
for (i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "name") == 0)
field->name = xstrdup(atts[i + 1]);
else if (strcmp(atts[i], "start") == 0) {
field->start = strtoul(atts[i + 1], &p, 0);
if (is_byte_offset(atts[i + 1]))
field->start *= 8;
} else if (strcmp(atts[i], "end") == 0) {
field->end = strtoul(atts[i + 1], &p, 0) - 1;
if (is_byte_offset(atts[i + 1]))
field->end *= 8;
} else if (strcmp(atts[i], "size") == 0) {
size = strtoul(atts[i + 1], &p, 0);
if (is_byte_offset(atts[i + 1]))
size *= 8;
} else if (strcmp(atts[i], "type") == 0)
field->type = string_to_type(ctx, atts[i + 1]);
else if (strcmp(atts[i], "default") == 0 &&
field->start >= 16 && field->end <= 31) {
field->has_default = true;
field->default_value = strtoul(atts[i + 1], &p, 0);
}
}
if (size)
field->end = field->start + size - 1;
return field;
}
static struct v3d_value *
create_value(struct parser_context *ctx, const char **atts)
{
struct v3d_value *value = xzalloc(sizeof(*value));
for (int i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "name") == 0)
value->name = xstrdup(atts[i + 1]);
else if (strcmp(atts[i], "value") == 0)
value->value = strtoul(atts[i + 1], NULL, 0);
}
return value;
}
static void
create_and_append_field(struct parser_context *ctx,
const char **atts)
{
if (ctx->group->nfields == ctx->group->fields_size) {
ctx->group->fields_size = MAX2(ctx->group->fields_size * 2, 2);
ctx->group->fields =
(struct v3d_field **) realloc(ctx->group->fields,
sizeof(ctx->group->fields[0]) *
ctx->group->fields_size);
}
ctx->group->fields[ctx->group->nfields++] = create_field(ctx, atts);
}
static void
set_group_opcode(struct v3d_group *group, const char **atts)
{
char *p;
int i;
for (i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "code") == 0)
group->opcode = strtoul(atts[i + 1], &p, 0);
}
return;
}
static void
start_element(void *data, const char *element_name, const char **atts)
{
struct parser_context *ctx = data;
int i;
const char *name = NULL;
const char *ver = NULL;
ctx->loc.line_number = XML_GetCurrentLineNumber(ctx->parser);
for (i = 0; atts[i]; i += 2) {
if (strcmp(atts[i], "name") == 0)
name = atts[i + 1];
else if (strcmp(atts[i], "gen") == 0)
ver = atts[i + 1];
}
if (strcmp(element_name, "vcxml") == 0) {
if (ver == NULL)
fail(&ctx->loc, "no ver given");
int major, minor;
int n = sscanf(ver, "%d.%d", &major, &minor);
if (n == 0)
fail(&ctx->loc, "invalid ver given: %s", ver);
if (n == 1)
minor = 0;
ctx->spec->ver = major * 10 + minor;
} else if (strcmp(element_name, "packet") == 0 ||
strcmp(element_name, "struct") == 0) {
ctx->group = create_group(ctx, name, atts, NULL);
if (strcmp(element_name, "packet") == 0)
set_group_opcode(ctx->group, atts);
} else if (strcmp(element_name, "register") == 0) {
ctx->group = create_group(ctx, name, atts, NULL);
get_register_offset(atts, &ctx->group->register_offset);
} else if (strcmp(element_name, "group") == 0) {
struct v3d_group *previous_group = ctx->group;
while (previous_group->next)
previous_group = previous_group->next;
struct v3d_group *group = create_group(ctx, "", atts,
ctx->group);
previous_group->next = group;
ctx->group = group;
} else if (strcmp(element_name, "field") == 0) {
create_and_append_field(ctx, atts);
} else if (strcmp(element_name, "enum") == 0) {
ctx->enoom = create_enum(ctx, name, atts);
} else if (strcmp(element_name, "value") == 0) {
ctx->values[ctx->nvalues++] = create_value(ctx, atts);
assert(ctx->nvalues < ARRAY_SIZE(ctx->values));
}
}
static void
end_element(void *data, const char *name)
{
struct parser_context *ctx = data;
struct v3d_spec *spec = ctx->spec;
if (strcmp(name, "packet") == 0 ||
strcmp(name, "struct") == 0 ||
strcmp(name, "register") == 0) {
struct v3d_group *group = ctx->group;
ctx->group = ctx->group->parent;
if (strcmp(name, "packet") == 0) {
spec->commands[spec->ncommands++] = group;
/* V3D packet XML has the packet contents with offsets
* starting from the first bit after the opcode, to
* match the spec. Shift the fields up now.
*/
for (int i = 0; i < group->nfields; i++) {
group->fields[i]->start += 8;
group->fields[i]->end += 8;
}
}
else if (strcmp(name, "struct") == 0)
spec->structs[spec->nstructs++] = group;
else if (strcmp(name, "register") == 0)
spec->registers[spec->nregisters++] = group;
assert(spec->ncommands < ARRAY_SIZE(spec->commands));
assert(spec->nstructs < ARRAY_SIZE(spec->structs));
assert(spec->nregisters < ARRAY_SIZE(spec->registers));
} else if (strcmp(name, "group") == 0) {
ctx->group = ctx->group->parent;
} else if (strcmp(name, "field") == 0) {
assert(ctx->group->nfields > 0);
struct v3d_field *field = ctx->group->fields[ctx->group->nfields - 1];
size_t size = ctx->nvalues * sizeof(ctx->values[0]);
field->inline_enum.values = xzalloc(size);
field->inline_enum.nvalues = ctx->nvalues;
memcpy(field->inline_enum.values, ctx->values, size);
ctx->nvalues = 0;
} else if (strcmp(name, "enum") == 0) {
struct v3d_enum *e = ctx->enoom;
size_t size = ctx->nvalues * sizeof(ctx->values[0]);
e->values = xzalloc(size);
e->nvalues = ctx->nvalues;
memcpy(e->values, ctx->values, size);
ctx->nvalues = 0;
ctx->enoom = NULL;
spec->enums[spec->nenums++] = e;
}
}
static void
character_data(void *data, const XML_Char *s, int len)
{
}
static uint32_t zlib_inflate(const void *compressed_data,
uint32_t compressed_len,
void **out_ptr)
{
struct z_stream_s zstream;
void *out;
memset(&zstream, 0, sizeof(zstream));
zstream.next_in = (unsigned char *)compressed_data;
zstream.avail_in = compressed_len;
if (inflateInit(&zstream) != Z_OK)
return 0;
out = malloc(4096);
zstream.next_out = out;
zstream.avail_out = 4096;
do {
switch (inflate(&zstream, Z_SYNC_FLUSH)) {
case Z_STREAM_END:
goto end;
case Z_OK:
break;
default:
inflateEnd(&zstream);
return 0;
}
if (zstream.avail_out)
break;
out = realloc(out, 2*zstream.total_out);
if (out == NULL) {
inflateEnd(&zstream);
return 0;
}
zstream.next_out = (unsigned char *)out + zstream.total_out;
zstream.avail_out = zstream.total_out;
} while (1);
end:
inflateEnd(&zstream);
*out_ptr = out;
return zstream.total_out;
}
struct v3d_spec *
v3d_spec_load(const struct v3d_device_info *devinfo)
{
struct parser_context ctx;
void *buf;
uint8_t *text_data = NULL;
uint32_t text_offset = 0, text_length = 0, total_length;
for (int i = 0; i < ARRAY_SIZE(genxml_files_table); i++) {
if (genxml_files_table[i].gen_10 == devinfo->ver) {
text_offset = genxml_files_table[i].offset;
text_length = genxml_files_table[i].length;
break;
}
}
if (text_length == 0) {
fprintf(stderr, "unable to find gen (%u) data\n", devinfo->ver);
return NULL;
}
memset(&ctx, 0, sizeof ctx);
ctx.parser = XML_ParserCreate(NULL);
XML_SetUserData(ctx.parser, &ctx);
if (ctx.parser == NULL) {
fprintf(stderr, "failed to create parser\n");
return NULL;
}
XML_SetElementHandler(ctx.parser, start_element, end_element);
XML_SetCharacterDataHandler(ctx.parser, character_data);
ctx.spec = xzalloc(sizeof(*ctx.spec));
total_length = zlib_inflate(compress_genxmls,
sizeof(compress_genxmls),
(void **) &text_data);
assert(text_offset + text_length <= total_length);
buf = XML_GetBuffer(ctx.parser, text_length);
memcpy(buf, &text_data[text_offset], text_length);
if (XML_ParseBuffer(ctx.parser, text_length, true) == 0) {
fprintf(stderr,
"Error parsing XML at line %ld col %ld byte %ld/%u: %s\n",
XML_GetCurrentLineNumber(ctx.parser),
XML_GetCurrentColumnNumber(ctx.parser),
XML_GetCurrentByteIndex(ctx.parser), text_length,
XML_ErrorString(XML_GetErrorCode(ctx.parser)));
XML_ParserFree(ctx.parser);
free(text_data);
return NULL;
}
XML_ParserFree(ctx.parser);
free(text_data);
return ctx.spec;
}
struct v3d_group *
v3d_spec_find_instruction(struct v3d_spec *spec, const uint8_t *p)
{
for (int i = 0; i < spec->ncommands; i++) {
uint8_t opcode = *p;
if (opcode == spec->commands[i]->opcode)
return spec->commands[i];
}
return NULL;
}
/** Returns the size of a V3D packet. */
int
v3d_group_get_length(struct v3d_group *group)
{
int last_bit = 0;
for (int i = 0; i < group->nfields; i++) {
struct v3d_field *field = group->fields[i];
last_bit = MAX2(last_bit, field->end);
}
return last_bit / 8 + 1;
}
void
v3d_field_iterator_init(struct v3d_field_iterator *iter,
struct v3d_group *group,
const uint8_t *p,
bool print_colors)
{
memset(iter, 0, sizeof(*iter));
iter->group = group;
iter->p = p;
iter->print_colors = print_colors;
}
static const char *
v3d_get_enum_name(struct v3d_enum *e, uint64_t value)
{
for (int i = 0; i < e->nvalues; i++) {
if (e->values[i]->value == value) {
return e->values[i]->name;
}
}
return NULL;
}
static bool
iter_more_fields(const struct v3d_field_iterator *iter)
{
return iter->field_iter < iter->group->nfields;
}
static uint32_t
iter_group_offset_bits(const struct v3d_field_iterator *iter,
uint32_t group_iter)
{
return iter->group->group_offset + (group_iter *
iter->group->group_size);
}
static bool
iter_more_groups(const struct v3d_field_iterator *iter)
{
if (iter->group->variable) {
return iter_group_offset_bits(iter, iter->group_iter + 1) <
(v3d_group_get_length(iter->group) * 8);
} else {
return (iter->group_iter + 1) < iter->group->group_count ||
iter->group->next != NULL;
}
}
static void
iter_advance_group(struct v3d_field_iterator *iter)
{
if (iter->group->variable)
iter->group_iter++;
else {
if ((iter->group_iter + 1) < iter->group->group_count) {
iter->group_iter++;
} else {
iter->group = iter->group->next;
iter->group_iter = 0;
}
}
iter->field_iter = 0;
}
static bool
iter_advance_field(struct v3d_field_iterator *iter)
{
while (!iter_more_fields(iter)) {
if (!iter_more_groups(iter))
return false;
iter_advance_group(iter);
}
iter->field = iter->group->fields[iter->field_iter++];
if (iter->field->name)
strncpy(iter->name, iter->field->name, sizeof(iter->name));
else
memset(iter->name, 0, sizeof(iter->name));
iter->offset = iter_group_offset_bits(iter, iter->group_iter) / 8 +
iter->field->start / 8;
iter->struct_desc = NULL;
return true;
}
bool
v3d_field_iterator_next(struct v3d_field_iterator *iter)
{
if (!iter_advance_field(iter))
return false;
const char *enum_name = NULL;
int s = iter->field->start;
int e = iter->field->end;
switch (iter->field->type.kind) {
case V3D_TYPE_UNKNOWN:
case V3D_TYPE_INT: {
uint32_t value = __gen_unpack_sint(iter->p, s, e);
snprintf(iter->value, sizeof(iter->value), "%d", value);
enum_name = v3d_get_enum_name(&iter->field->inline_enum, value);
break;
}
case V3D_TYPE_UINT: {
uint32_t value = __gen_unpack_uint(iter->p, s, e);
snprintf(iter->value, sizeof(iter->value), "%u", value);
enum_name = v3d_get_enum_name(&iter->field->inline_enum, value);
break;
}
case V3D_TYPE_BOOL: {
const char *true_string =
iter->print_colors ? "\e[0;35mtrue\e[0m" : "true";
snprintf(iter->value, sizeof(iter->value), "%s",
__gen_unpack_uint(iter->p, s, e) ?
true_string : "false");
break;
}
case V3D_TYPE_FLOAT:
snprintf(iter->value, sizeof(iter->value), "%f",
__gen_unpack_float(iter->p, s, e));
break;
case V3D_TYPE_ADDRESS:
case V3D_TYPE_OFFSET:
snprintf(iter->value, sizeof(iter->value), "0x%08"PRIx64,
__gen_unpack_uint(iter->p, s, e));
break;
case V3D_TYPE_STRUCT:
snprintf(iter->value, sizeof(iter->value), "<struct %s>",
iter->field->type.v3d_struct->name);
iter->struct_desc =
v3d_spec_find_struct(iter->group->spec,
iter->field->type.v3d_struct->name);
break;
case V3D_TYPE_SFIXED:
snprintf(iter->value, sizeof(iter->value), "%f",
__gen_unpack_sfixed(iter->p, s, e,
iter->field->type.f));
break;
case V3D_TYPE_UFIXED:
snprintf(iter->value, sizeof(iter->value), "%f",
__gen_unpack_ufixed(iter->p, s, e,
iter->field->type.f));
break;
case V3D_TYPE_MBO:
break;
case V3D_TYPE_ENUM: {
uint32_t value = __gen_unpack_uint(iter->p, s, e);
snprintf(iter->value, sizeof(iter->value), "%d", value);
enum_name = v3d_get_enum_name(iter->field->type.v3d_enum, value);
break;
}
}
if (strlen(iter->group->name) == 0) {
int length = strlen(iter->name);
snprintf(iter->name + length, sizeof(iter->name) - length,
"[%i]", iter->group_iter);
}
if (enum_name) {
int length = strlen(iter->value);
snprintf(iter->value + length, sizeof(iter->value) - length,
" (%s)", enum_name);
}
return true;
}
void
v3d_print_group(FILE *outfile, struct v3d_group *group,
uint64_t offset, const uint8_t *p, bool color)
{
struct v3d_field_iterator iter;
v3d_field_iterator_init(&iter, group, p, color);
while (v3d_field_iterator_next(&iter)) {
fprintf(outfile, " %s: %s\n", iter.name, iter.value);
if (iter.struct_desc) {
uint64_t struct_offset = offset + iter.offset;
v3d_print_group(outfile, iter.struct_desc,
struct_offset,
&p[iter.offset], color);
}
}
}

146
src/broadcom/cle/v3d_decoder.h Normal file
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@@ -0,0 +1,146 @@
/*
* Copyright © 2016 Intel Corporation
* Copyright © 2017 Broadcom
*
* 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.
*/
#ifndef V3D_DECODER_H
#define V3D_DECODER_H
#include <stdint.h>
#include <stdio.h>
#include <stdbool.h>
#include "broadcom/common/v3d_device_info.h"
struct v3d_spec;
struct v3d_group;
struct v3d_field;
struct v3d_group *v3d_spec_find_struct(struct v3d_spec *spec, const char *name);
struct v3d_spec *v3d_spec_load(const struct v3d_device_info *devinfo);
struct v3d_group *v3d_spec_find_instruction(struct v3d_spec *spec, const uint8_t *p);
struct v3d_group *v3d_spec_find_register(struct v3d_spec *spec, uint32_t offset);
struct v3d_group *v3d_spec_find_register_by_name(struct v3d_spec *spec, const char *name);
int v3d_group_get_length(struct v3d_group *group);
const char *v3d_group_get_name(struct v3d_group *group);
uint8_t v3d_group_get_opcode(struct v3d_group *group);
struct v3d_enum *v3d_spec_find_enum(struct v3d_spec *spec, const char *name);
struct v3d_field_iterator {
struct v3d_group *group;
char name[128];
char value[128];
struct v3d_group *struct_desc;
const uint8_t *p;
int offset; /**< current field starts at &p[offset] */
int field_iter;
int group_iter;
struct v3d_field *field;
bool print_colors;
};
struct v3d_group {
struct v3d_spec *spec;
char *name;
struct v3d_field **fields;
uint32_t nfields;
uint32_t fields_size;
uint32_t group_offset, group_count;
uint32_t group_size;
bool variable;
struct v3d_group *parent;
struct v3d_group *next;
uint8_t opcode;
/* Register specific */
uint32_t register_offset;
};
struct v3d_value {
char *name;
uint64_t value;
};
struct v3d_enum {
char *name;
int nvalues;
struct v3d_value **values;
};
struct v3d_type {
enum {
V3D_TYPE_UNKNOWN,
V3D_TYPE_INT,
V3D_TYPE_UINT,
V3D_TYPE_BOOL,
V3D_TYPE_FLOAT,
V3D_TYPE_ADDRESS,
V3D_TYPE_OFFSET,
V3D_TYPE_STRUCT,
V3D_TYPE_UFIXED,
V3D_TYPE_SFIXED,
V3D_TYPE_MBO,
V3D_TYPE_ENUM
} kind;
/* Struct definition for V3D_TYPE_STRUCT */
union {
struct v3d_group *v3d_struct;
struct v3d_enum *v3d_enum;
struct {
/* Integer and fractional sizes for V3D_TYPE_UFIXED and
* V3D_TYPE_SFIXED
*/
int i, f;
};
};
};
struct v3d_field {
char *name;
int start, end;
struct v3d_type type;
bool has_default;
uint32_t default_value;
struct v3d_enum inline_enum;
};
void v3d_field_iterator_init(struct v3d_field_iterator *iter,
struct v3d_group *group,
const uint8_t *p,
bool print_colors);
bool v3d_field_iterator_next(struct v3d_field_iterator *iter);
void v3d_print_group(FILE *out,
struct v3d_group *group,
uint64_t offset, const uint8_t *p,
bool color);
#endif /* V3D_DECODER_H */