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"""Generate extended reference model API with eager operator execution entrypoints"""
# Copyright (c) 2021-2022, ARM Limited.
# SPDX-License-Identifier: Apache-2.0
import copy
import os
import subprocess
from xml.dom import minidom
from jinja2 import Environment
from jinja2 import FileSystemLoader
def getTosaArgTypes(tosaXml):
"""
Returns a list of the TOSA argument types from tosa.xml.
"""
argTypes = {"in_t", "out_t", "mul_t", "weight_t", "in_out_t"}
argTypesXml = tosaXml.getElementsByTagName("type")
for argTypeXml in argTypesXml:
argTypes.add(argTypeXml.getAttribute("name"))
argTypes.remove("TABLE_SIZE")
return argTypes
def getTosaDataTypes(tosaXml):
"""
Returns a list of the TOSA data types from tosa.xml.
"""
argTypes = getTosaArgTypes(tosaXml)
dataTypes = set()
dataTypesXml = tosaXml.getElementsByTagName("typesupport")
for dataTypeXml in dataTypesXml:
for argType in argTypes:
dataType = dataTypeXml.getAttribute(argType)
if dataType != "":
dataTypes.add(f"tosa_datatype_{dataType}")
return sorted(dataTypes)
def getSerializeOpType(tosaOpName):
"""
Returns the Serialization library operator that matches the TOSA operator specified.
"""
map = {
"avg_pool2d": "Pool",
"conv2d": "Conv",
"conv3d": "Conv",
"depthwise_conv2d": "Conv",
"fully_connected": "FullyConnected",
"matmul": "MatMul",
"max_pool2d": "Pool",
"transpose_conv2d": "Conv",
"clamp": "Clamp",
"arithmetic_right_shift": "ArithmeticRightShift",
"mul": "Mul",
"table": "Table",
"negate": "Negate",
"pad": "Pad",
"reshape": "Reshape",
"slice": "Slice",
"tile": "Tile",
"transpose": "Transpose",
"resize": "Resize",
"rescale": "Rescale",
"cond_if": "CondIf",
"while_loop": "WhileLoop",
}
if tosaOpName not in map.keys():
return "None"
else:
return map[tosaOpName]
def getSerializeArgsForOp(tosaOpName, allSerializeArgs, tosaArgs):
"""
Returns the arguments required by the Serialization library for the TOSA operator specified.
Generates code to initialize Serialization arguments. If a matching TOSA argument exists,
that value is used for initialization, otherwise a default value e.g. 0 is used.
"""
serOpType = getSerializeOpType(tosaOpName)
if serOpType not in allSerializeArgs.keys():
return {}
else:
serOpArgs = copy.deepcopy(allSerializeArgs[serOpType])
tosaArgsDict = {arg["name"]: arg for arg in tosaArgs}
serTosaTypeMap = {"ResizeMode": "tosa_mode"}
for arg in serOpArgs:
argName = arg["name"]
init = ""
# Translate TOSA data types to Serialization data types for initialization
if arg["dType"] in serTosaTypeMap.keys():
init = f" = translate_client_{serTosaTypeMap[arg['dType']]}(client_{argName})"
# Initialize Serialization arguments to their matching function parameter
elif argName in tosaArgsDict:
if arg["SV"] == "V":
shape = tosaArgsDict[argName]["shape"]
if shape == "[]":
init = f"(&client_{argName}[0], &client_{argName}[0] + client_{argName}_len)"
else:
init = f"(&client_{argName}[0], &client_{argName}{shape})"
else:
init = f" = client_{argName}"
else:
# Initialize Serialization arguments with no matching fuction parameter
if arg["SV"] == "V":
init = ""
else:
if arg["dType"] == "DType":
arg["dType"] = "tosa::DType"
init = " = tosa::DType::DType_FP32"
else:
init = " = 0"
arg["init"] = init
return serOpArgs
def updateTosaArgs(tosaArgs, serializeArgs, tosaXml):
"""
Replace TOSA argument data types with their matching Serialization argument data types.
Delete TOSA arguments where the type couldn't be determined.
Add Serialization arguments that have no matching TOSA argument.
"""
tosaArgTypes = getTosaArgTypes(tosaXml)
serArgsDict = {arg["name"]: arg for arg in serializeArgs}
tosaArgsNames = [arg["name"] for arg in tosaArgs]
delTosaArgs = []
# Replace TOSA argument data types with their matching Serialization argument data types.
for tosaArg in tosaArgs:
if tosaArg["type"] in tosaArgTypes:
if tosaArg["name"] in serArgsDict:
tosaArg["type"] = serArgsDict[tosaArg["name"]]["dType"]
else:
# Delete TOSA argument whose data type can't be determined
delTosaArgs.append(tosaArgsNames.index(tosaArg["name"]))
# Delete corresponding length argument if one exists
lenArgName = f"{tosaArg['name']}_len"
if lenArgName in tosaArgsNames:
delTosaArgs.append(tosaArgsNames.index(lenArgName))
# Delete TOSA arguments where the type couldn't be determined
for index in sorted(delTosaArgs, key=int, reverse=True):
del tosaArgs[index]
# Add Serialization arguments that have no matching TOSA argument
tosaArgNames = [arg["name"] for arg in tosaArgs]
for serArg in serializeArgs:
if (serArg["name"] not in tosaArgNames) and (
not serArg["dType"] == "tosa::DType"
):
serArgName = serArg["name"]
if serArg["SV"] == "V":
# For vector data types, insert a matching length argument
tosaArgs.insert(
len(tosaArgs) - 1,
{
"name": f"{serArgName}_len",
"type": "int32_t",
"shape": "",
"category": "",
},
)
init = f"(&client_{serArgName}[0], &client_{serArgName}[0] + client_{serArgName}_len)"
shape = "[]"
else:
init = f" = client_{serArg['name']}"
shape = ""
serArg["init"] = init
# Insert new argument
tosaArgs.insert(
len(tosaArgs) - 1,
{
"name": serArgName,
"type": serArg["dType"],
"shape": shape,
"category": "",
},
)
def getOperators(tosaXml):
"""
Return a list of TOSA operators as defined by tosa.xml.
"""
operators = []
ignoreOps = ["while_loop", "cond_if", "const", "custom", "fft2d", "rfft2d"]
opsXml = tosaXml.getElementsByTagName("operator")
allSerializeArgs = getSerializeArgs()
for opXml in opsXml:
opName = opXml.getElementsByTagName("name")[0].firstChild.data.lower()
if opName not in ignoreOps:
operator = {"name": opName}
operator["serializeAttType"] = getSerializeOpType(opName)
tosaArgs = getTosaArgs(opXml)
serializeArgs = getSerializeArgsForOp(opName, allSerializeArgs, tosaArgs)
updateTosaArgs(tosaArgs, serializeArgs, tosaXml)
operator["arguments"] = tosaArgs
operator["serializeArgs"] = serializeArgs
operator["inputs"] = [
arg["name"] for arg in tosaArgs if arg["category"] == "input"
]
operator["outputs"] = [
arg["name"] for arg in tosaArgs if arg["category"] == "output"
]
operators.append(operator)
return operators
def getTosaArgs(opXml):
"""
Return the arguments required for the TOSA operator specified.
"""
arguments = []
argsXml = opXml.getElementsByTagName("argument")
tosaTensorTypes = getTosaArgTypes(tosaXml)
tosaTypeMap = {"bool_t": "bool", "uint6_t": "uint8_t", "mode_t": "tosa_mode_t"}
for xmlArg in argsXml:
argName = xmlArg.getAttribute("name").lower()
argType = xmlArg.getAttribute("type")
argShape = xmlArg.getAttribute("shape")
argCategory = xmlArg.getAttribute("category")
# Update argument type
if argType[-1:] == "*":
argType = argType[:-1]
if argCategory in ["input", "output"] and argType in tosaTensorTypes:
argType = "tosa_tensor_t"
argShape = ""
if argType in tosaTypeMap:
argType = tosaTypeMap[argType]
# Add a length argument for arrays with unknown compile-time size
if argShape != "" and argShape[0] == "[" and not argShape[1:-1].isnumeric():
argShape = "[]"
arguments.append(
{
"name": f"{argName}_len",
"type": "int32_t",
"shape": "",
"category": "",
}
)
elif argShape == "" or not argShape[0] == "[":
argShape = ""
# Append argument
arguments.append(
{
"name": argName,
"type": argType,
"shape": argShape,
"category": argCategory,
}
)
return arguments
def clangFormat(filename):
cmd = ["clang-format", "-i", filename]
with open(os.devnull, "w") as devnull:
subprocess.check_call(cmd, stdout=devnull)
def getSerializeArgs():
"""
Parse attribute.def file and return a dictionary where the keys are Serialization library operator names.
The values are the arguments required by each Serialization library operator.
"""
serializeArgs = {}
with open("../../thirdparty/serialization_lib/include/attribute.def") as file:
preamble = True
inAtt = False
opName = ""
args = []
for line in file:
if preamble and not line[: len("DEF_ATTRIBUTE(")] == "DEF_ATTRIBUTE(":
continue
else:
preamble = False
line = line.lstrip().rstrip()
if not inAtt and "DEF_ATTRIBUTE(" in line:
opName = line[len("DEF_ATTRIBUTE(") : line.find(",")]
inAtt = True
elif inAtt:
vals = line.split(",")
argName = vals[2].lstrip().strip()
if ")" in argName:
argName = argName[:-1]
arg = {
"name": argName,
"dType": vals[0].lstrip().strip(),
"SV": vals[1].lstrip().strip(),
}
args.append(arg)
if ")" in line:
serializeArgs[opName] = args
opName = ""
args = []
inAtt = False
return serializeArgs
def renderTemplate(environment, dataTypes, operators, template, outfile):
content = template.render(dataTypes=dataTypes, operators=operators)
with open(outfile, mode="w", encoding="utf-8") as output:
output.write(content)
print(f"Created {outfile}")
clangFormat(outfile)
def generate(environment, dataTypes, operators):
# Generate include/operators.h
template = environment.get_template("operators_h.j2")
outfile = os.path.join("..", "..", "reference_model", "include", "operators.h")
renderTemplate(environment, dataTypes, operators, template, outfile)
# Generate src/operators.cc
template = environment.get_template("operators_cc.j2")
outfile = os.path.join("..", "..", "reference_model", "src", "operators.cc")
renderTemplate(environment, dataTypes, operators, template, outfile)
def getSerializeOpTypeMap():
"""
Utility function for generating the map used in getSerializeOpType()
"""
import re
allSerializeArgs = getSerializeArgs()
serArgs = [
re.sub(r"(?<!^)(?=[A-Z])", "_", name).lower()
for name in allSerializeArgs.keys()
]
serArgs = sorted(serArgs, key=len, reverse=True)
tosaXml = minidom.parse("../../thirdparty/specification/tosa.xml")
opsXml = tosaXml.getElementsByTagName("operator")
opNames = [
op.getElementsByTagName("name")[0].firstChild.data.lower() for op in opsXml
]
map = {}
for opName in opNames:
for serArg in serArgs:
if serArg in opName:
components = serArg.split("_")
map[opName] = "".join(x.title() for x in components)
return map
if __name__ == "__main__":
environment = Environment(loader=FileSystemLoader("templates/"))
tosaXml = minidom.parse("../../thirdparty/specification/tosa.xml")
dataTypes = getTosaDataTypes(tosaXml)
operators = getOperators(tosaXml)
generate(environment, dataTypes, operators)
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