import os, sys import numpy from pythonparser import diagnostic from artiq import __artiq_dir__ as artiq_dir from artiq.language.core import * from artiq.language.types import * from artiq.language.units import * from artiq.compiler.module import Module from artiq.compiler.embedding import Stitcher from artiq.compiler.targets import OR1KTarget from artiq.coredevice.comm_kernel import CommKernel, CommKernelDummy # Import for side effects (creating the exception classes). from artiq.coredevice import exceptions def _render_diagnostic(diagnostic, colored): def shorten_path(path): return path.replace(artiq_dir, "") lines = [shorten_path(path) for path in diagnostic.render(colored=colored)] return "\n".join(lines) colors_supported = os.name == "posix" class _DiagnosticEngine(diagnostic.Engine): def render_diagnostic(self, diagnostic): sys.stderr.write(_render_diagnostic(diagnostic, colored=colors_supported) + "\n") class CompileError(Exception): def __init__(self, diagnostic): self.diagnostic = diagnostic def __str__(self): # Prepend a newline so that the message shows up on after # exception class name printed by Python. return "\n" + _render_diagnostic(self.diagnostic, colored=colors_supported) @syscall def rtio_init() -> TNone: raise NotImplementedError("syscall not simulated") @syscall(flags={"nounwind", "nowrite"}) def rtio_get_counter() -> TInt64: raise NotImplementedError("syscall not simulated") @syscall(flags={"nounwind", "nowrite"}) def drtio_get_link_status(linkno: TInt32) -> TBool: raise NotImplementedError("syscall not simulated") class Core: """Core device driver. :param host: hostname or IP address of the core device. :param ref_period: period of the reference clock for the RTIO subsystem. On platforms that use clock multiplication and SERDES-based PHYs, this is the period after multiplication. For example, with a RTIO core clocked at 125MHz and a SERDES multiplication factor of 8, the reference period is 1ns. The time machine unit is equal to this period. :param ref_multiplier: ratio between the RTIO fine timestamp frequency and the RTIO coarse timestamp frequency (e.g. SERDES multiplication factor). """ kernel_invariants = { "core", "ref_period", "coarse_ref_period", "ref_multiplier", } def __init__(self, dmgr, host, ref_period, ref_multiplier=8): self.ref_period = ref_period self.ref_multiplier = ref_multiplier self.coarse_ref_period = ref_period*ref_multiplier if host is None: self.comm = CommKernelDummy() else: self.comm = CommKernel(host) self.first_run = True self.dmgr = dmgr self.core = self self.comm.core = self def close(self): self.comm.close() def compile(self, function, args, kwargs, set_result=None, attribute_writeback=True, print_as_rpc=True): try: engine = _DiagnosticEngine(all_errors_are_fatal=True) stitcher = Stitcher(engine=engine, core=self, dmgr=self.dmgr, print_as_rpc=print_as_rpc) stitcher.stitch_call(function, args, kwargs, set_result) stitcher.finalize() module = Module(stitcher, ref_period=self.ref_period, attribute_writeback=attribute_writeback) target = OR1KTarget() library = target.compile_and_link([module]) stripped_library = target.strip(library) return stitcher.embedding_map, stripped_library, \ lambda addresses: target.symbolize(library, addresses), \ lambda symbols: target.demangle(symbols) except diagnostic.Error as error: raise CompileError(error.diagnostic) from error def run(self, function, args, kwargs): result = None @rpc(flags={"async"}) def set_result(new_result): nonlocal result result = new_result embedding_map, kernel_library, symbolizer, demangler = \ self.compile(function, args, kwargs, set_result) if self.first_run: self.comm.check_system_info() self.first_run = False self.comm.load(kernel_library) self.comm.run() self.comm.serve(embedding_map, symbolizer, demangler) return result @portable def seconds_to_mu(self, seconds): """Converts seconds to the corresponding number of machine units (RTIO cycles). :param seconds: time (in seconds) to convert. """ return numpy.int64(seconds//self.ref_period) @portable def mu_to_seconds(self, mu): """Converts machine units (RTIO cycles) to seconds. :param mu: cycle count to convert. """ return mu*self.ref_period @kernel def get_rtio_counter_mu(self): return rtio_get_counter() @kernel def get_drtio_link_status(self, linkno): """Returns whether the specified DRTIO link is up. This is particularly useful in startup kernels to delay startup until certain DRTIO links are up.""" return drtio_get_link_status(linkno) @kernel def reset(self): """Clear RTIO FIFOs, release RTIO PHY reset, and set the time cursor at the current value of the hardware RTIO counter plus a margin of 125000 machine units.""" rtio_init() at_mu(rtio_get_counter() + 125000) @kernel def break_realtime(self): """Set the time cursor after the current value of the hardware RTIO counter plus a margin of 125000 machine units. If the time cursor is already after that position, this function does nothing.""" min_now = rtio_get_counter() + 125000 if now_mu() < min_now: at_mu(min_now)