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Reset processing on assert edge only to permit operations to be queued while reset is asserted

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This commit is contained in:
Alex Forencich
2021-03-21 12:13:19 -07:00
parent 156fada616
commit 7fb8c4e28b
6 changed files with 187 additions and 183 deletions
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146
cocotbext/axi/axi_master.py
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@@ -208,6 +208,43 @@ class AxiMasterWrite(Reset):
if self._process_write_resp_cr is not None:
self._process_write_resp_cr.kill()
self._process_write_resp_cr = None
self.aw_channel.clear()
self.w_channel.clear()
self.b_channel.clear()
while not self.write_command_queue.empty():
cmd = self.write_command_queue.get_nowait()
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_write_command:
cmd = self.current_write_command
self.current_write_command = None
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.int_write_resp_command_queue.empty():
cmd = self.int_write_resp_command_queue.get_nowait()
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_write_resp_command:
cmd = self.current_write_resp_command
self.current_write_resp_command = None
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.write_resp_queue.empty():
resp = self.write_resp_queue.get_nowait()
self.log.warning("Flushed write response during reset: %s", resp)
self.in_flight_operations = 0
self._idle.set()
else:
self.log.info("Reset de-asserted")
if self._process_write_cr is None:
@@ -215,43 +252,6 @@ class AxiMasterWrite(Reset):
if self._process_write_resp_cr is None:
self._process_write_resp_cr = cocotb.scheduler.start_soon(self._process_write_resp())
self.aw_channel.clear()
self.w_channel.clear()
self.b_channel.clear()
while not self.write_command_queue.empty():
cmd = self.write_command_queue.get_nowait()
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_write_command:
cmd = self.current_write_command
self.current_write_command = None
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.int_write_resp_command_queue.empty():
cmd = self.int_write_resp_command_queue.get_nowait()
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_write_resp_command:
cmd = self.current_write_resp_command
self.current_write_resp_command = None
self.log.warning("Flushed write operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.write_resp_queue.empty():
resp = self.write_resp_queue.get_nowait()
self.log.warning("Flushed write response during reset: %s", resp)
self.in_flight_operations = 0
self._idle.set()
async def _process_write(self):
while True:
cmd = await self.write_command_queue.get()
@@ -565,6 +565,42 @@ class AxiMasterRead(Reset):
if self._process_read_resp_cr is not None:
self._process_read_resp_cr.kill()
self._process_read_resp_cr = None
self.ar_channel.clear()
self.r_channel.clear()
while not self.read_command_queue.empty():
cmd = self.read_command_queue.get_nowait()
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_read_command:
cmd = self.current_read_command
self.current_read_command = None
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.int_read_resp_command_queue.empty():
cmd = self.int_read_resp_command_queue.get_nowait()
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_read_resp_command:
cmd = self.current_read_resp_command
self.current_read_resp_command = None
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.read_data_queue.empty():
resp = self.read_data_queue.get_nowait()
self.log.warning("Flushed read response during reset: %s", resp)
self.in_flight_operations = 0
self._idle.set()
else:
self.log.info("Reset de-asserted")
if self._process_read_cr is None:
@@ -572,42 +608,6 @@ class AxiMasterRead(Reset):
if self._process_read_resp_cr is None:
self._process_read_resp_cr = cocotb.scheduler.start_soon(self._process_read_resp())
self.ar_channel.clear()
self.r_channel.clear()
while not self.read_command_queue.empty():
cmd = self.read_command_queue.get_nowait()
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_read_command:
cmd = self.current_read_command
self.current_read_command = None
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.int_read_resp_command_queue.empty():
cmd = self.int_read_resp_command_queue.get_nowait()
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
if self.current_read_resp_command:
cmd = self.current_read_resp_command
self.current_read_resp_command = None
self.log.warning("Flushed read operation during reset: %s", cmd)
if cmd.event:
cmd.event.set(None)
while not self.read_data_queue.empty():
resp = self.read_data_queue.get_nowait()
self.log.warning("Flushed read response during reset: %s", resp)
self.in_flight_operations = 0
self._idle.set()
async def _process_read(self):
while True:
cmd = await self.read_command_queue.get()