class LogisticRegression():
def __init__( self ,
NB_PIPELINE_STAGES = 4,
DATAWIDTH = 32,
CHANNEL_WIDTH = 1,
INIT_DATA = 0,
LEN_THETA = 3,
CMD_FILE = ""):
self.NB_PIPELINE_STAGES = NB_PIPELINE_STAGES
self.DATAWIDTH = DATAWIDTH
self.CHANNEL_WIDTH = CHANNEL_WIDTH
self.INIT_DATA = INIT_DATA
self.LEN_THETA = LEN_THETA
self.CMD_FILE = CMD_FILE
# IO Signals
self.pipeST_A_i = PipelineST( self.DATAWIDTH, self.CHANNEL_WIDTH , self.INIT_DATA )
self.pipeST_B_i = PipelineST( self.DATAWIDTH, self.CHANNEL_WIDTH , self.INIT_DATA )
self.pipeST_o = PipelineST( self.DATAWIDTH, self.CHANNEL_WIDTH , self.INIT_DATA )
# Internal Signals
self.pipe_out_acc = PipelineST( self.DATAWIDTH, self.CHANNEL_WIDTH, self.INIT_DATA )
#----------------- Initializing Pipeline Streams ----------------
self.operand_a = OperandPipeline( self.NB_PIPELINE_STAGES ,
self.DATAWIDTH ,
self.CHANNEL_WIDTH ,
self.INIT_DATA )
self.pipeA_stage = self.operand_a.pipeST_stage_o
self.operand_b = OperandPipeline( self.NB_PIPELINE_STAGES ,
self.DATAWIDTH ,
self.CHANNEL_WIDTH ,
self.INIT_DATA )
self.pipeB_stage = self.operand_b.pipeST_stage_o
# --- Initializing Command Pipeline
OPCODE = "MULT"
OPSTAGE = 2
self.multPipe = CommandPipeline( self.NB_PIPELINE_STAGES ,
self.DATAWIDTH ,
self.CHANNEL_WIDTH ,
self.INIT_DATA ,
OPCODE ,
OPSTAGE )
self.multC_stage = self.multPipe.pipeST_stage_o
# ---- Initializing Accumulator Block
self.accuPipe = Accumulator( self.DATAWIDTH ,
self.CHANNEL_WIDTH ,
self.INIT_DATA ,
self.LEN_THETA )
# ---- Initializing Activation Block
ACT_DATAWIDTH= 3 # 0 or 1 for classification
self.activPipe = Activation( ACT_DATAWIDTH ,
self.CHANNEL_WIDTH ,
self.INIT_DATA )
@myhdl.block
def top( self ,
reset ,
clk ,
pipeST_A_i ,
pipeST_B_i ,
pipeST_o ):
#----------------------------------------------------------------
inferenceData = ( self.operand_a.top ( reset, clk, pipeST_A_i, self.pipeA_stage ) )
theta = ( self.operand_b.top ( reset, clk, pipeST_B_i, self.pipeB_stage ) )
#----------------------------------------------------------------
#----------------- Connecting Command Pipeline -------------------
# Mult Pipeline
command = ( self.multPipe.top ( reset, clk, self.pipeA_stage, self.pipeB_stage, self.multC_stage ) )
#----------------------------------------------------------------
#----------------- Connecting Accumulator --------------
# Accu
acc_reset = self.accuPipe.reset_acc
accumulator = ( self.accuPipe.top ( reset, clk, acc_reset, self.multC_stage [ 0 ] , self.pipe_out_acc ) )
#----------------------------------------------------------------
#----------------- Connecting Activation --------------
# Simple Step Activation function
activation = ( self.activPipe.top ( reset, clk, self.pipe_out_acc, pipeST_o ) )
#----------------------------------------------------------------
return myhdl.instances()
