def genCmd(self):
if self.closeIt or not self.cmdRandomizer.get():
return None
trans = Transaction()
if not self.burstRandomizer.get():
trans.address = randBits(9+2+2)
else:
trans.address = self.lastAddr + 1
trans.address = trans.address & ((1 << 13)-1)
trans.write = self.writeRandomizer.get() and self.writeRandomizer.get()
trans.mask = randBits(2)
trans.data = randBits(16)
trans.context = randBits(8)
self.lastAddr = trans.address
if trans.write == 0:
rsp = Transaction()
rsp.data = self.ram[trans.address*2] + (self.ram[trans.address*2+1] << 8)
rsp.context = trans.context
self.scorboard.refPush(rsp)
if rsp.data != 0:
self.nonZeroRspCounter += 1
if self.nonZeroRspCounter % 50 == 0:
print("self.nonZeroRspCounter=" + str(self.nonZeroRspCounter))
else:
for i in xrange(2):
if (trans.mask >> i) & 1 == 1:
self.ram[trans.address * 2 + i] = (trans.data >> (i*8)) & 0xFF
return trans
def onReadCmd(self,cmd):
for i in xrange(cmd.len + 1):
rsp = Transaction()
rsp.hid = cmd.hid
if cmd.addr < (1 << 14):
rsp.data = cmd.addr + i
rsp.resp = 0
else:
rsp.data = 0
rsp.resp = 3
rsp.last = 1 if i == cmd.len else 0
self.readRspScoreboard.refPush(rsp, cmd.hid)
def onReadCmd(self, cmd):
for i in xrange(cmd.len + 1):
rsp = Transaction()
rsp.hid = cmd.hid
if cmd.addr < (1 << 14):
rsp.data = cmd.addr + i
rsp.resp = 0
else:
rsp.data = 0
rsp.resp = 3
rsp.last = 1 if i == cmd.len else 0
self.readRspScoreboard.refPush(rsp, cmd.hid)
def onWriteCmd(self,cmd):
for i in range(cmd.len + 1):
writeData = Transaction()
writeData.data = cmd.addr + i
writeData.strb = (cmd.addr + i) & 0xF
writeData.last = 1 if i == cmd.len else 0
self.dataScoreboard.refPush(writeData)
def onWriteCmd(self,cmd):
for i in xrange(cmd.len + 1):
writeData = Transaction()
writeData.data = cmd.addr + i
writeData.strb = (cmd.addr + i) & 0xF
writeData.last = 1 if i == cmd.len else 0
self.dataScoreboard.refPush(writeData)
def genWrite(self):
idOffset = randBits(2)
writeCmd = Transaction()
writeCmd.addr = self.genRandomAddress()
if random.random() < 0.1: # Random assertion of decoding error
writeCmd.addr = 1 << 12
writeCmd.hid = self.hid * 4 + idOffset #Each master can use 4 id
writeCmd.region = randBits(4)
writeCmd.len = randBits(4)
writeCmd.size = randBits(3)
writeCmd.burst = randBits(2)
writeCmd.lock = randBits(1)
writeCmd.cache = randBits(4)
writeCmd.qos = randBits(4)
writeCmd.prot = randBits(3)
self.writeCmdQueue.put(writeCmd)
writeCmd.linkedDatas = []
for i in range(writeCmd.len + 1):
writeData = Transaction()
writeData.data = randBits(32)
writeData.strb = randBits(4)
writeData.last = 1 if i == writeCmd.len else 0
self.writeDataQueue.put(writeData)
writeCmd.linkedDatas.append(writeData)
self.idToWrites[writeCmd.hid].append(writeCmd)
def write(self, address, data):
aw = Transaction()
aw.addr = address
aw.prot = 0
self.awQueue.put(aw)
w = Transaction()
w.data = data
w.strb = 0xF
self.wQueue.put(w)
while True:
yield RisingEdge(self.clk)
if self.axiLite.b.valid == True and self.axiLite.b.ready == True:
break
def genCmd(self):
if self.closeIt or not self.cmdRandomizer.get():
return None
trans = Transaction()
if not self.burstRandomizer.get():
trans.address = randBits(9 + 2 + 2)
else:
trans.address = self.lastAddr + 1
trans.address = trans.address & ((1 << 13) - 1)
trans.write = self.writeRandomizer.get() and self.writeRandomizer.get()
trans.mask = randBits(2)
trans.data = randBits(16)
trans.context = randBits(8)
self.lastAddr = trans.address
if trans.write == 0:
rsp = Transaction()
rsp.data = self.ram[trans.address *
2] + (self.ram[trans.address * 2 + 1] << 8)
rsp.context = trans.context
self.scorboard.refPush(rsp)
if rsp.data != 0:
self.nonZeroRspCounter += 1
if self.nonZeroRspCounter % 50 == 0:
print(("self.nonZeroRspCounter=" +
str(self.nonZeroRspCounter)))
else:
for i in range(2):
if (trans.mask >> i) & 1 == 1:
self.ram[trans.address * 2 + i] = (trans.data >>
(i * 8)) & 0xFF
return trans
def onReadCmd(self,trans):
if trans.addr < self.base or trans.addr >= self.base + self.size:
raise TestFailure("WRONG ADDRESS addr=%d base=%d size=%d" %(trans.addr,self.base,self.size))
for i in xrange(trans.len+1):
rsp = Transaction()
rsp.data = trans.addr + i
rsp.resp = 0
rsp.hid = trans.hid
if i == trans.len:
rsp.last = 1
else:
rsp.last = 0
queue = self.readRspQueues[trans.hid]
if queue.empty():
self.nonEmptyReadRspQueues.append(queue)
queue.put(rsp)
def genReadRsp(self):
tasksQueue = self.getRandTaskList()
if tasksQueue:
if self.readRspIdleRand.get():
task = tasksQueue.queue[0]
trans = Transaction()
trans.data = task.addr + task.progress
trans.resp = 0
trans.hid = task.hid
task.progress += 1
if task.progress == task.len + 1:
trans.last = 1
tasksQueue.get()
else:
trans.last = 0
return trans
def onReadCmd(self, trans):
if trans.addr < self.base or trans.addr >= self.base + self.size:
raise TestFailure("WRONG ADDRESS addr=%d base=%d size=%d" %
(trans.addr, self.base, self.size))
for i in range(trans.len + 1):
rsp = Transaction()
rsp.data = trans.addr + i
rsp.resp = 0
rsp.hid = trans.hid
if i == trans.len:
rsp.last = 1
else:
rsp.last = 0
queue = self.readRspQueues[trans.hid]
if queue.empty():
self.nonEmptyReadRspQueues.append(queue)
queue.put(rsp)
def genWrite(self):
idOffset = randBits(2)
writeCmd = Transaction()
writeCmd.addr = self.genRandomWriteAddress()
writeCmd.hid = self.idBase + idOffset #Each master can use 4 id
writeCmd.region = randBits(4)
writeCmd.len = randBits(4)
writeCmd.size = randBits(3)
writeCmd.burst = randBits(2)
writeCmd.lock = randBits(1)
writeCmd.cache = randBits(4)
writeCmd.qos = randBits(4)
writeCmd.prot = randBits(3)
self.writeCmdQueue.put(writeCmd)
for i in xrange(writeCmd.len + 1):
writeData = Transaction()
writeData.data = writeCmd.addr + i
writeData.strb = (writeCmd.addr + i) & 0xF
writeData.last = 1 if i == writeCmd.len else 0
self.writeDataQueue.put(writeData)
def genWrite(self):
idOffset = randBits(2)
writeCmd = Transaction()
writeCmd.addr = self.genRandomWriteAddress()
writeCmd.hid = self.idBase + idOffset #Each master can use 4 id
writeCmd.region = randBits(4)
writeCmd.len = randBits(4)
writeCmd.size = randBits(3)
writeCmd.burst = randBits(2)
writeCmd.lock = randBits(1)
writeCmd.cache = randBits(4)
writeCmd.qos = randBits(4)
writeCmd.prot = randBits(3)
self.writeCmdQueue.put(writeCmd)
for i in range(writeCmd.len + 1):
writeData = Transaction()
writeData.data = writeCmd.addr + i
writeData.strb = (writeCmd.addr + i) & 0xF
writeData.last = 1 if i == writeCmd.len else 0
self.writeDataQueue.put(writeData)
def run(self):
global crapyConflictCounter
global normalConflictCounter
global normalTransactionCounter
yield Timer(self.baudPeriod * 10)
while crapyConflictCounter < 2 or normalConflictCounter < 3 or normalTransactionCounter < 40:
while True:
colision = False
cmd = Transaction()
cmd.mode = 0
cmd.data = randBool()
self.cmdQueue.append(cmd)
address = randBits(8) | 2
for bitId in range(8):
cmd = Transaction()
cmd.mode = 1
cmd.data = (address >> (7 - bitId)) & 1
self.cmdQueue.append(cmd)
yield clockedWaitTrue(self.clk, self.rsp.valid)
if self.rsp.payload.data != cmd.data:
assert bitId == 6
colision = True
cmd = Transaction()
cmd.mode = 3 #DROP
cmd.data = randBool()
self.cmdQueue.append(cmd)
break
if colision:
continue
for bitId in range(8):
cmd = Transaction()
cmd.mode = 1
cmd.data = True
self.cmdQueue.append(cmd)
yield clockedWaitTrue(self.clk, self.rsp.valid)
assert self.rsp.payload.data == ((cmdToData[address] >>
(7 - bitId)) & 1)
if random.random() < 0.75:
cmd = Transaction()
cmd.mode = 2
cmd.data = randBool()
self.cmdQueue.append(cmd)
if random.random() < 0.75: #no other master frame
if random.random() < 0.5: # With inter frame delay
yield Timer(randInt(0, self.baudPeriod * 20))
else:
@coroutine
def anotherFrameEmiter():
yield self.softMaster.sendStart()
for i in range(5):
yield self.softMaster.sendBit(randBool())
yield self.softMaster.sendStop()
yield Timer(
randInt(self.baudPeriod * 4, self.baudPeriod * 10))
fork(anotherFrameEmiter())
yield Timer(
randInt(self.baudPeriod * 1, self.baudPeriod * 14))
normalTransactionCounter += 1
break
while self.cmdQueue:
yield Timer(self.baudPeriod * 10)
def genNewCmd(self):
cmd = Transaction()
cmd.hid = randBits(self.idWidth) # Each master can use 4 id
cmd.region = randBits(4)
cmd.len = randBits(4)
cmd.size = random.randint(0, self.maxDataBytes)
cmd.burst = random.randint(0, 2)
if cmd.burst == 2:
cmd.len = random.choice([2, 4, 8, 16]) - 1
else:
cmd.len = randBits(4) + (16 if random.random() < 0.1 else
0) + (32 if random.random() < 0.02 else 0)
cmd.lock = randBits(1)
cmd.cache = randBits(4)
cmd.qos = randBits(4)
cmd.prot = randBits(3)
byteCount = (1 << cmd.size) * (cmd.len + 1)
while (True):
cmd.addr = self.genRandomeAddress() & ~((1 << cmd.size) - 1)
if cmd.burst == 1:
if cmd.addr + byteCount >= (1 << self.addressWidth):
continue
if cmd.burst == 0:
start = cmd.addr
end = start + cmd.size
if cmd.burst == 1:
start = cmd.addr
end = start + byteCount
if cmd.burst == 2:
start = cmd.addr & ~(byteCount - 1)
end = start + byteCount
if self.isAddressRangeBusy(start, end):
continue
break
if self.readWriteRand.get():
cmd.write = 1
beatAddr = cmd.addr
for i in range(cmd.len + 1):
dataTrans = Transaction()
dataTrans.data = randBits(self.dataWidth)
dataTrans.strb = randBits(self.maxDataBytes)
dataTrans.last = 1 if cmd.len == i else 0
self.writeTasks.put(dataTrans)
for s in range(self.maxDataBytes):
if (dataTrans.strb >> s) & 1 == 1:
self.ram[(beatAddr & ~(self.maxDataBytes - 1)) +
s] = (dataTrans.data >> (s * 8)) & 0xFF
beatAddr = Axi4AddrIncr(beatAddr, cmd.burst, cmd.len, cmd.size)
writeRsp = Transaction()
writeRsp.resp = 0
writeRsp.hid = cmd.hid
self.reservedAddresses[writeRsp] = [start, end]
self.writeRspScoreboard.refPush(writeRsp, writeRsp.hid)
else:
cmd.write = 0
beatAddr = cmd.addr
for s in range(cmd.len + 1):
readRsp = Transaction()
addrBase = beatAddr & ~(self.maxDataBytes - 1)
readRsp.data = 0
for i in range(self.maxDataBytes):
readRsp.data |= self.ram[addrBase + i] << (i * 8)
readRsp.resp = 0
readRsp.last = 1 if cmd.len == s else 0
readRsp.hid = cmd.hid
if readRsp.last == 1:
self.reservedAddresses[readRsp] = [start, end]
self.readRspScoreboard.refPush(readRsp, readRsp.hid)
beatAddr = Axi4AddrIncr(beatAddr, cmd.burst, cmd.len, cmd.size)
self.cmdTasks.put(cmd)
def run(self):
global crapyConflictCounter
global normalConflictCounter
global normalTransactionCounter
yield Timer(self.baudPeriod * 10)
while crapyConflictCounter < 2 or normalConflictCounter < 3 or normalTransactionCounter < 40:
while True:
colision = False
cmd = Transaction()
cmd.mode = 0
cmd.data = randBool()
self.cmdQueue.append(cmd)
address = randBits(8) | 2
for bitId in range(8):
cmd = Transaction()
cmd.mode = 1
cmd.data = (address >> (7 - bitId)) & 1
self.cmdQueue.append(cmd)
yield clockedWaitTrue(self.clk,self.rsp.valid)
if self.rsp.payload.data != cmd.data:
assert bitId == 6
colision = True
cmd = Transaction()
cmd.mode = 3 #DROP
cmd.data = randBool()
self.cmdQueue.append(cmd)
break
if colision:
continue
for bitId in range(8):
cmd = Transaction()
cmd.mode = 1
cmd.data = True
self.cmdQueue.append(cmd)
yield clockedWaitTrue(self.clk,self.rsp.valid)
assert self.rsp.payload.data == ((cmdToData[address] >> (7-bitId)) & 1)
if random.random() < 0.75:
cmd = Transaction()
cmd.mode = 2
cmd.data = randBool()
self.cmdQueue.append(cmd)
if random.random() < 0.75: #no other master frame
if random.random() < 0.5: # With inter frame delay
yield Timer(randInt(0,self.baudPeriod*20))
else:
@coroutine
def anotherFrameEmiter():
yield self.softMaster.sendStart()
for i in range(5):
yield self.softMaster.sendBit(randBool())
yield self.softMaster.sendStop()
yield Timer(randInt(self.baudPeriod * 4, self.baudPeriod * 10))
fork(anotherFrameEmiter())
yield Timer(randInt(self.baudPeriod * 1, self.baudPeriod * 14))
normalTransactionCounter += 1
break
while self.cmdQueue:
yield Timer(self.baudPeriod * 10)