144 lines
4.8 KiB
Python
144 lines
4.8 KiB
Python
import os
|
|
from typing import Union
|
|
|
|
import jinja2 as jj
|
|
from systemrdl.node import AddrmapNode, RootNode
|
|
from systemrdl.walker import RDLWalker
|
|
|
|
from .addr_decode import AddressDecode
|
|
from .field_logic import FieldLogic
|
|
from .dereferencer import Dereferencer
|
|
from .readback import Readback
|
|
from .signals import InferredSignal, RDLSignal
|
|
|
|
from .cpuif import CpuifBase
|
|
from .cpuif.apb3 import APB3_Cpuif
|
|
from .hwif import Hwif
|
|
from .utils import get_always_ff_event
|
|
from .scan_design import DesignScanner
|
|
|
|
class RegblockExporter:
|
|
def __init__(self, **kwargs):
|
|
user_template_dir = kwargs.pop("user_template_dir", None)
|
|
|
|
# Check for stray kwargs
|
|
if kwargs:
|
|
raise TypeError("got an unexpected keyword argument '%s'" % list(kwargs.keys())[0])
|
|
|
|
|
|
self.top_node = None # type: AddrmapNode
|
|
self.hwif = None # type: Hwif
|
|
self.cpuif = None # type: CpuifBase
|
|
self.address_decode = AddressDecode(self)
|
|
self.field_logic = FieldLogic(self)
|
|
self.readback = None # type: Readback
|
|
self.dereferencer = Dereferencer(self)
|
|
self.default_resetsignal = InferredSignal("rst")
|
|
|
|
|
|
if user_template_dir:
|
|
loader = jj.ChoiceLoader([
|
|
jj.FileSystemLoader(user_template_dir),
|
|
jj.FileSystemLoader(os.path.dirname(__file__)),
|
|
jj.PrefixLoader({
|
|
'user': jj.FileSystemLoader(user_template_dir),
|
|
'base': jj.FileSystemLoader(os.path.dirname(__file__)),
|
|
}, delimiter=":")
|
|
])
|
|
else:
|
|
loader = jj.ChoiceLoader([
|
|
jj.FileSystemLoader(os.path.dirname(__file__)),
|
|
jj.PrefixLoader({
|
|
'base': jj.FileSystemLoader(os.path.dirname(__file__)),
|
|
}, delimiter=":")
|
|
])
|
|
|
|
self.jj_env = jj.Environment(
|
|
loader=loader,
|
|
undefined=jj.StrictUndefined,
|
|
)
|
|
|
|
|
|
def export(self, node: Union[RootNode, AddrmapNode], output_dir:str, **kwargs):
|
|
# If it is the root node, skip to top addrmap
|
|
if isinstance(node, RootNode):
|
|
self.top_node = node.top
|
|
else:
|
|
self.top_node = node
|
|
|
|
|
|
cpuif_cls = kwargs.pop("cpuif_cls", APB3_Cpuif)
|
|
module_name = kwargs.pop("module_name", self.top_node.inst_name)
|
|
package_name = kwargs.pop("package_name", module_name + "_pkg")
|
|
reuse_hwif_typedefs = kwargs.pop("reuse_hwif_typedefs", True)
|
|
|
|
# Pipelining options
|
|
retime_read_fanin = kwargs.pop("retime_read_fanin", False)
|
|
retime_read_response = kwargs.pop("retime_read_response", True)
|
|
|
|
# Check for stray kwargs
|
|
if kwargs:
|
|
raise TypeError("got an unexpected keyword argument '%s'" % list(kwargs.keys())[0])
|
|
|
|
|
|
# Scan the design for any unsupported features
|
|
# Also collect pre-export information
|
|
scanner = DesignScanner(self)
|
|
RDLWalker().walk(self.top_node, scanner)
|
|
if scanner.msg.had_error:
|
|
scanner.msg.fatal(
|
|
"Unable to export due to previous errors"
|
|
)
|
|
raise ValueError
|
|
|
|
cpuif_reset_tmp = self.top_node.cpuif_reset
|
|
if cpuif_reset_tmp:
|
|
cpuif_reset = RDLSignal(cpuif_reset_tmp)
|
|
else:
|
|
cpuif_reset = self.default_resetsignal
|
|
reset_signals = set([cpuif_reset, self.default_resetsignal])
|
|
|
|
self.cpuif = cpuif_cls(
|
|
self,
|
|
cpuif_reset=cpuif_reset,
|
|
data_width=scanner.cpuif_data_width,
|
|
addr_width=self.top_node.size.bit_length()
|
|
)
|
|
|
|
self.hwif = Hwif(
|
|
self,
|
|
package_name=package_name,
|
|
reuse_typedefs=reuse_hwif_typedefs
|
|
)
|
|
|
|
self.readback = Readback(
|
|
self,
|
|
retime_read_fanin
|
|
)
|
|
|
|
# Build Jinja template context
|
|
context = {
|
|
"module_name": module_name,
|
|
"reset_signals": reset_signals,
|
|
"user_signals": [], # TODO:
|
|
"interrupts": [], # TODO:
|
|
"cpuif": self.cpuif,
|
|
"hwif": self.hwif,
|
|
"address_decode": self.address_decode,
|
|
"field_logic": self.field_logic,
|
|
"readback": self.readback,
|
|
"get_always_ff_event": get_always_ff_event,
|
|
"retime_read_response": retime_read_response,
|
|
}
|
|
|
|
# Write out design
|
|
package_file_path = os.path.join(output_dir, package_name + ".sv")
|
|
template = self.jj_env.get_template("package_tmpl.sv")
|
|
stream = template.stream(context)
|
|
stream.dump(package_file_path)
|
|
|
|
module_file_path = os.path.join(output_dir, module_name + ".sv")
|
|
template = self.jj_env.get_template("module_tmpl.sv")
|
|
stream = template.stream(context)
|
|
stream.dump(module_file_path)
|