build/generic_toolchain, soc/integration/builder: introducing a backend argument and edalize as alternate backend
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d1e610c400
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@ -17,22 +17,23 @@ class GenericToolchain:
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"keep": ("keep", "true"),
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}
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supported_backend = ["LiteX"]
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def __init__(self):
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self.clocks = dict()
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self.false_paths = set() # FIXME: use it
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self.named_pc = []
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self.named_sc = []
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self._synth_opts = ""
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def build_io_constraints(self):
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raise NotImplementedError("GenericToolchain.build_io_constraints must be overloaded.")
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def build_placement_constraints(self):
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# FIXME: Switch to fixed parameter when determined?
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pass # Pass since optional.
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return ("","") # Empty since optional.
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def build_timing_constraints(self, vns):
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# FIXME: Switch to fixed parameter when determined?
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pass # Pass since optional.
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return ("","") # Empty since optional.
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def build_project(self):
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pass # Pass since optional.
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@ -40,15 +41,19 @@ class GenericToolchain:
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def build_script(self):
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raise NotImplementedError("GenericToolchain.build_script must be overloaded.")
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def get_tool_options(self):
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return ("",{}) # empty since optional.
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def _build(self, platform, fragment,
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build_dir = "build",
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build_name = "top",
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synth_opts = "",
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run = True,
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backend = "LiteX",
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**kwargs):
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self._build_name = build_name
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self._synth_opts = synth_opts
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self._synth_opts += synth_opts
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self.platform = platform
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# Create Build Directory.
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@ -69,11 +74,17 @@ class GenericToolchain:
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platform.add_source(v_file)
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# Generate Design IO Constraints File.
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self.build_io_constraints()
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io_cst_file = self.build_io_constraints()
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# Generate Design Timing Constraints File.
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self.build_timing_constraints(v_output.ns)
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tim_cst_file = self.build_timing_constraints(v_output.ns)
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if backend not in self.supported_backend:
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raise NotImplementedError("Backend {backend} not supported by {toolchain} toolchain".format(
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backend=backend,
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toolchain=type(self).__name__))
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if backend == "LiteX":
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# Generate project.
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self.build_project()
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@ -83,6 +94,40 @@ class GenericToolchain:
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# Run.
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if run:
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self.run_script(script)
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else:
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from edalize import get_edatool
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# Get tool name and options
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(tool, tool_options)= self.get_tool_options()
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# Files list
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files = []
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for filename, language, library, *copy in self.platform.sources:
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ext = {
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"verilog" : "verilogSource",
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"systemverilog": "systemVerilogSource",
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"vhdl" : "vhdlSource"
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}[language]
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files.append({'name': filename, 'file_type': ext})
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# IO/timings constraints
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files.append({'name':os.path.abspath(io_cst_file[0]), 'file_type':io_cst_file[1]})
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if tim_cst_file[0] != "":
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files.append({'name':os.path.abspath(tim_cst_file[0]), 'file_type':tim_cst_file[1]})
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edam = {
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'name' : self._build_name,
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'files' : files,
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'tool_options' : {tool: tool_options},
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'toplevel' : self._build_name,
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}
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backend = get_edatool(tool)(edam=edam, work_root=build_dir)
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backend.configure()
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if run:
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backend.build()
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os.chdir(cwd)
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@ -72,6 +72,7 @@ class Builder:
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# Compile Options.
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compile_software = True,
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compile_gateware = True,
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backend = "LiteX",
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# Exports.
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csr_json = None,
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@ -97,6 +98,7 @@ class Builder:
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# Compile Options.
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self.compile_software = compile_software
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self.compile_gateware = compile_gateware
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self.backend = backend
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# Exports.
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self.csr_csv = csr_csv
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@ -346,6 +348,8 @@ class Builder:
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if "run" not in kwargs:
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kwargs["run"] = self.compile_gateware
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kwargs["backend"] = self.backend
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# Build SoC and pass Verilog Name Space to do_exit.
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vns = self.soc.build(build_dir=self.gateware_dir, **kwargs)
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self.soc.do_exit(vns=vns)
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@ -389,6 +393,7 @@ def builder_args(parser):
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builder_group.add_argument("--csr-svd", default=None, help="Write SoC mapping to the specified SVD file.")
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builder_group.add_argument("--memory-x", default=None, help="Write SoC Memory Regions to the specified Memory-X file.")
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builder_group.add_argument("--doc", action="store_true", help="Generate SoC Documentation.")
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builder_group.add_argument("--backend", default="LiteX", help="Select backend: LiteX, edalize.")
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def builder_argdict(args):
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@ -405,4 +410,5 @@ def builder_argdict(args):
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"csr_svd": args.csr_svd,
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"memory_x": args.memory_x,
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"generate_doc": args.doc,
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"backend": args.backend,
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}
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