mirror of https://github.com/VLSIDA/OpenRAM.git
Reimplement gdsMill pin functions so they are run once when a GDS is loaded. Get pins is now a table lookup.
This commit is contained in:
Matt Guthaus
parent
485590052a
commit
1fe767343e
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@ -88,9 +88,9 @@ def get_libcell_size(name, units, layer):
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return(get_gds_size(name, cell_gds, units, layer))
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def get_gds_pins(pin_list, name, gds_filename, units, layer):
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def get_gds_pins(pin_names, name, gds_filename, units):
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"""
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Open a GDS file and find the pins in pin_list as text on a given layer.
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Open a GDS file and find the pins in pin_names as text on a given layer.
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Return these as a rectangle layer pair for each pin.
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"""
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cell_vlsi = gdsMill.VlsiLayout(units=units)
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@ -98,23 +98,23 @@ def get_gds_pins(pin_list, name, gds_filename, units, layer):
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reader.loadFromFile(gds_filename)
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cell = {}
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for pin in pin_list:
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cell[str(pin)]=[]
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label_list=cell_vlsi.getPinShapeByLabel(str(pin))
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for label in label_list:
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(name,layer,boundary)=label
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for pin_name in pin_names:
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cell[str(pin_name)]=[]
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pin_list=cell_vlsi.getAllPinShapes(str(pin_name))
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for pin_shape in pin_list:
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(layer,boundary)=pin_shape
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rect=[vector(boundary[0],boundary[1]),vector(boundary[2],boundary[3])]
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# this is a list because other cells/designs may have must-connect pins
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cell[str(pin)].append(pin_layout(pin, rect, layer))
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cell[str(pin_name)].append(pin_layout(pin_name, rect, layer))
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return cell
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def get_libcell_pins(pin_list, name, units, layer):
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def get_libcell_pins(pin_list, name, units):
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"""
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Open a GDS file and find the pins in pin_list as text on a given layer.
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Return these as a rectangle layer pair for each pin.
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"""
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cell_gds = OPTS.openram_tech + "gds_lib/" + str(name) + ".gds"
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return(get_gds_pins(pin_list, name, cell_gds, units, layer))
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return(get_gds_pins(pin_list, name, cell_gds, units))
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@ -13,7 +13,7 @@ class bitcell(design.design):
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pin_names = ["bl", "br", "wl", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("cell_6t", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "cell_6t", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "cell_6t", GDS["unit"])
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def __init__(self):
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design.design.__init__(self, "cell_6t")
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@ -13,7 +13,7 @@ class bitcell_1rw_1r(design.design):
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pin_names = ["bl0", "br0", "bl1", "br1", "wl0", "wl1", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("cell_1rw_1r", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "cell_1rw_1r", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "cell_1rw_1r", GDS["unit"])
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def __init__(self):
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design.design.__init__(self, "cell_1rw_1r")
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@ -12,7 +12,7 @@ class replica_bitcell(design.design):
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pin_names = ["bl", "br", "wl", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("replica_cell_6t", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "replica_cell_6t", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "replica_cell_6t", GDS["unit"])
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def __init__(self):
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design.design.__init__(self, "replica_cell_6t")
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@ -12,7 +12,7 @@ class replica_bitcell_1rw_1r(design.design):
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pin_names = ["bl0", "br0", "bl1", "br1", "wl0", "wl1", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("replica_cell_1rw_1r", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "replica_cell_1rw_1r", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "replica_cell_1rw_1r", GDS["unit"])
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def __init__(self):
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design.design.__init__(self, "replica_cell_1rw_1r")
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@ -60,6 +60,9 @@ class VlsiLayout:
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self.tempCoordinates=None
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self.tempPassFail = True
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# This is the pin map
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self.pins = {}
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def rotatedCoordinates(self,coordinatesToRotate,rotateAngle):
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#helper method to rotate a list of coordinates
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angle=math.radians(float(0))
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@ -206,7 +209,11 @@ class VlsiLayout:
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def initialize(self):
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self.deduceHierarchy()
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#self.traverseTheHierarchy()
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self.populateCoordinateMap()
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self.populateCoordinateMap()
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for layerNumber in self.layerNumbersInUse:
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self.processLabelPins(layerNumber)
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def populateCoordinateMap(self):
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def addToXyTree(startingStructureName = None,transformPath = None):
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@ -478,6 +485,10 @@ class VlsiLayout:
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return False #these shapes are ok
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def isPointInsideOfBox(self,pointCoordinates,boxCoordinates):
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"""
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Check if a point is contained in the shape
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"""
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debug.check(len(boxCoordinates)==4,"Invalid number of coordinates for box.")
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leftBound = boxCoordinates[0][0]
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rightBound = boxCoordinates[0][0]
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topBound = boxCoordinates[0][1]
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@ -499,7 +510,9 @@ class VlsiLayout:
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return True
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def isShapeInsideOfBox(self,shapeCoordinates, boxCoordinates):
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#go through every point in the shape to test if they are all inside the box
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"""
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Go through every point in the shape to test if they are all inside the box.
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"""
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for point in shapeCoordinates:
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if not self.isPointInsideOfBox(point,boxCoordinates):
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return False
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@ -634,160 +647,85 @@ class VlsiLayout:
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return cellBoundary
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def getLabelDBInfo(self,label_name):
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def getTexts(self, layer):
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"""
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Return the coordinates in DB units and layer of all matching labels
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Get all of the labels on a given layer only at the root level.
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"""
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label_list = []
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label_layer = None
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label_coordinate = [None, None]
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# Why must this be the last one found? It breaks if we return the first.
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text_list = []
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for Text in self.structures[self.rootStructureName].texts:
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if Text.textString == label_name or Text.textString == label_name+"\x00":
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label_layer = Text.drawingLayer
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label_coordinate = Text.coordinates[0]
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if label_layer!=None:
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label_list.append((label_coordinate,label_layer))
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debug.check(len(label_list)>0,"Did not find labels {0}.".format(label_name))
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return label_list
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def getLabelInfo(self,label_name):
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"""
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Return the coordinates in USER units and layer of a label
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"""
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label_list=self.getLabelDBInfo(label_name)
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new_list=[]
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for label in label_list:
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(label_coordinate,label_layer)=label
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user_coordinates = [x*self.units[0] for x in label_coordinate]
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new_list.append(user_coordinates,label_layer)
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return new_list
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if Text.drawingLayer == layer:
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text_list.append(Text)
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return text_list
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def getPinShapeByLocLayer(self, coordinate, layer):
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"""
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Return the largest enclosing rectangle on a layer and at a location.
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Coordinates should be in USER units.
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"""
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db_coordinate = [x/self.units[0] for x in coordinate]
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return self.getPinShapeByDBLocLayer(db_coordinate, layer)
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def getPinShapeByDBLocLayer(self, coordinate, layer):
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"""
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Return the largest enclosing rectangle on a layer and at a location.
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Coordinates should be in DB units.
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"""
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pin_boundaries=self.getAllPinShapesInStructureList(coordinate, layer)
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if len(pin_boundaries) == 0:
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debug.warning("Did not find pin on layer {0} at coordinate {1}".format(layer, coordinate))
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# sort the boundaries, return the max area pin boundary
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pin_boundaries.sort(key=boundaryArea,reverse=True)
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pin_boundary=pin_boundaries[0]
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# Convert to USER units
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pin_boundary=[pin_boundary[0]*self.units[0],pin_boundary[1]*self.units[0],
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pin_boundary[2]*self.units[0],pin_boundary[3]*self.units[0]]
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# Make a name if we don't have the pin name
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return ["p"+str(coordinate)+"_"+str(layer), layer, pin_boundary]
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def getAllPinShapesByLocLayer(self, coordinate, layer):
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"""
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Return ALL the enclosing rectangles on the same layer
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at the given coordinate. Coordinates should be in USER units.
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"""
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db_coordinate = [int(x/self.units[0]) for x in coordinate]
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return self.getAllPinShapesByDBLocLayer(db_coordinate, layer)
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def getAllPinShapesByDBLocLayer(self, coordinate, layer):
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"""
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Return ALL the enclosing rectangles on the same layer
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at the given coordinate. Input coordinates should be in DB units.
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Returns user unit shapes.
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"""
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pin_boundaries=self.getAllPinShapesInStructureList(coordinate, layer)
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# Convert to user units
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new_boundaries = []
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for pin_boundary in pin_boundaries:
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new_pin_boundary = [pin_boundary[0]*self.units[0],pin_boundary[1]*self.units[0],
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pin_boundary[2]*self.units[0],pin_boundary[3]*self.units[0]]
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new_boundaries.append(["p"+str(coordinate)+"_"+str(layer), layer, new_pin_boundary])
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return new_boundaries
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def getPinShapeByLabel(self,label_name):
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def getPinShape(self, pin_name):
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"""
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Search for a pin label and return the largest enclosing rectangle
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on the same layer as the pin label.
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Signal an error if there are multiple labels on different layers.
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"""
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label_list=self.getLabelDBInfo(label_name)
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shape_list=[]
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for label in label_list:
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(label_coordinate,label_layer)=label
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shape = self.getPinShapeByDBLocLayer(label_coordinate, label_layer)
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shape_list.append(shape)
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return shape_list
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pin_list = self.getAllPinShapes(pin_name)
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max_pin = None
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max_area = 0
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for pin in pin_list:
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(layer,boundary) = pin
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new_area = boundaryArea(boundary)
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if max_pin == None or new_area>max_area:
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max_pin = pin
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max_area = new_area
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def getAllPinShapesByLabel(self,label_name):
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return max_pin
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def getAllPinShapes(self, pin_name):
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"""
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Search for a pin label and return ALL the enclosing rectangles on the same layer
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as the pin label.
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"""
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label_list=self.getLabelDBInfo(label_name)
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shape_list=[]
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for label in label_list:
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(label_coordinate,label_layer)=label
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shape_list.extend(self.getAllPinShapesByDBLocLayer(label_coordinate, label_layer))
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shape_list = []
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pin_map = self.pins[pin_name]
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for pin in pin_map:
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(pin_layer, boundary) = pin
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shape_list.append(pin)
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return shape_list
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def getAllPinShapesInStructureList(self,coordinates,layer):
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def processLabelPins(self, layer):
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"""
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Given a coordinate, search for enclosing structures on the given layer.
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Return all pin shapes.
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Find all text labels and create a map to a list of shapes that
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they enclose on the given layer.
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"""
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boundaries = []
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for TreeUnit in self.xyTree:
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boundaries.extend(self.getPinInStructure(coordinates,layer,TreeUnit))
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# Get the labels on a layer in the root level
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labels = self.getTexts(layer)
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# Get all of the shapes on the layer at all levels
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# and transform them to the current level
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shapes = self.getAllShapes(layer)
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return boundaries
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for label in labels:
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label_coordinate = label.coordinates[0]
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user_coordinate = [x*self.units[0] for x in label_coordinate]
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pin_shapes = []
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for boundary in shapes:
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if self.labelInRectangle(user_coordinate,boundary):
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pin_shapes.append((layer, boundary))
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label_text = label.textString
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# Remove the padding if it exists
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if label_text[-1] == "\x00":
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label_text = label_text[0:-1]
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def getPinInStructure(self,coordinates,layer,structure):
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"""
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Go through all the shapes in a structure and return the list of shapes
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that the label coordinates are inside.
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try:
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self.pins[label_text]
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except KeyError:
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self.pins[label_text] = []
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self.pins[label_text].extend(pin_shapes)
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def getAllShapes(self,layer):
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"""
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(structureName,structureOrigin,structureuVector,structurevVector)=structure
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boundaries = []
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for boundary in self.structures[str(structureName)].boundaries:
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# Pin enclosures only work on rectangular pins so ignore any non rectangle
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# This may report not finding pins, but the user should fix this by adding a rectangle.
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if len(boundary.coordinates)!=5:
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continue
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if layer==boundary.drawingLayer:
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left_bottom=boundary.coordinates[0]
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right_top=boundary.coordinates[2]
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# Rectangle is [leftx, bottomy, rightx, topy].
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boundaryRect=[left_bottom[0],left_bottom[1],right_top[0],right_top[1]]
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boundaryRect=self.transformRectangle(boundaryRect,structureuVector,structurevVector)
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boundaryRect=[boundaryRect[0]+structureOrigin[0].item(),boundaryRect[1]+structureOrigin[1].item(),
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boundaryRect[2]+structureOrigin[0].item(),boundaryRect[3]+structureOrigin[1].item()]
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if self.labelInRectangle(coordinates,boundaryRect):
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boundaries.append(boundaryRect)
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return boundaries
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def getAllShapesInStructureList(self,layer):
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"""
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Return all pin shapes on a given layer.
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Return all gshapes on a given layer in [llx, lly, urx, ury] format and
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user units.
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"""
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boundaries = []
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for TreeUnit in self.xyTree:
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@ -812,7 +750,8 @@ class VlsiLayout:
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def getShapesInStructure(self,layer,structure):
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"""
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Go through all the shapes in a structure and return the list of shapes.
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Go through all the shapes in a structure and return the list of shapes in
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the form [llx, lly, urx, ury]
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"""
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(structureName,structureOrigin,structureuVector,structurevVector)=structure
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@ -820,6 +759,7 @@ class VlsiLayout:
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boundaries = []
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for boundary in self.structures[str(structureName)].boundaries:
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# FIXME: Right now, this only supports rectangular shapes!
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#debug.check(len(boundary.coordinates)==5,"Non-rectangular shape.")
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if len(boundary.coordinates)!=5:
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continue
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if layer==boundary.drawingLayer:
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@ -874,8 +814,8 @@ class VlsiLayout:
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"""
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Checks if a coordinate is within a given rectangle. Rectangle is [leftx, bottomy, rightx, topy].
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"""
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coordinate_In_Rectangle_x_range=(coordinate[0]>=int(rectangle[0]))&(coordinate[0]<=int(rectangle[2]))
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coordinate_In_Rectangle_y_range=(coordinate[1]>=int(rectangle[1]))&(coordinate[1]<=int(rectangle[3]))
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coordinate_In_Rectangle_x_range=(coordinate[0]>=rectangle[0])&(coordinate[0]<=rectangle[2])
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coordinate_In_Rectangle_y_range=(coordinate[1]>=rectangle[1])&(coordinate[1]<=rectangle[3])
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if coordinate_In_Rectangle_x_range & coordinate_In_Rectangle_y_range:
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return True
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else:
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@ -12,7 +12,7 @@ class dff(design.design):
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pin_names = ["D", "Q", "clk", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("dff", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "dff", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "dff", GDS["unit"])
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def __init__(self, name="dff"):
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design.design.__init__(self, name)
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@ -13,7 +13,7 @@ class sense_amp(design.design):
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pin_names = ["bl", "br", "dout", "en", "vdd", "gnd"]
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(width,height) = utils.get_libcell_size("sense_amp", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "sense_amp", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "sense_amp", GDS["unit"])
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def __init__(self, name):
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design.design.__init__(self, name)
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@ -12,7 +12,7 @@ class tri_gate(design.design):
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pin_names = ["in", "en", "en_bar", "out", "gnd", "vdd"]
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(width,height) = utils.get_libcell_size("tri_gate", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "tri_gate", GDS["unit"], layer["boundary"])
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pin_map = utils.get_libcell_pins(pin_names, "tri_gate", GDS["unit"])
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unique_id = 1
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@ -13,7 +13,7 @@ class write_driver(design.design):
|
|||
|
||||
pin_names = ["din", "bl", "br", "en", "gnd", "vdd"]
|
||||
(width,height) = utils.get_libcell_size("write_driver", GDS["unit"], layer["boundary"])
|
||||
pin_map = utils.get_libcell_pins(pin_names, "write_driver", GDS["unit"], layer["boundary"])
|
||||
pin_map = utils.get_libcell_pins(pin_names, "write_driver", GDS["unit"])
|
||||
|
||||
def __init__(self, name):
|
||||
design.design.__init__(self, name)
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
import sys
|
||||
import gdsMill
|
||||
from tech import drc,GDS
|
||||
from tech import layer as techlayer
|
||||
import math
|
||||
import debug
|
||||
from router_tech import router_tech
|
||||
|
|
@ -39,7 +40,7 @@ class router(router_tech):
|
|||
self.reader = gdsMill.Gds2reader(self.layout)
|
||||
self.reader.loadFromFile(gds_filename)
|
||||
self.top_name = self.layout.rootStructureName
|
||||
|
||||
|
||||
### The pin data structures
|
||||
# A map of pin names to a set of pin_layout structures
|
||||
self.pins = {}
|
||||
|
|
@ -95,12 +96,13 @@ class router(router_tech):
|
|||
|
||||
def retrieve_pins(self,pin_name):
|
||||
"""
|
||||
Retrieve the pin shapes from the layout.
|
||||
Retrieve the pin shapes on metal 3 from the layout.
|
||||
"""
|
||||
shape_list=self.layout.getAllPinShapesByLabel(str(pin_name))
|
||||
debug.info(2,"Retrieving pins for {}.".format(pin_name))
|
||||
shape_list=self.layout.getAllPinShapes(str(pin_name))
|
||||
pin_set = set()
|
||||
for shape in shape_list:
|
||||
(name,layer,boundary)=shape
|
||||
(layer,boundary)=shape
|
||||
# GDSMill boundaries are in (left, bottom, right, top) order
|
||||
# so repack and snap to the grid
|
||||
ll = vector(boundary[0],boundary[1]).snap_to_grid()
|
||||
|
|
@ -125,10 +127,14 @@ class router(router_tech):
|
|||
Pin can either be a label or a location,layer pair: [[x,y],layer].
|
||||
"""
|
||||
debug.info(1,"Finding pins for {}.".format(pin_name))
|
||||
|
||||
import datetime
|
||||
from globals import print_time
|
||||
start_time = datetime.datetime.now()
|
||||
self.retrieve_pins(pin_name)
|
||||
print_time("Retrieve pins", datetime.datetime.now(), start_time)
|
||||
start_time = datetime.datetime.now()
|
||||
self.analyze_pins(pin_name)
|
||||
|
||||
print_time("Analyze pins", datetime.datetime.now(), start_time)
|
||||
|
||||
def find_blockages(self):
|
||||
"""
|
||||
|
|
@ -443,7 +449,7 @@ class router(router_tech):
|
|||
Recursive find boundaries as blockages to the routing grid.
|
||||
"""
|
||||
|
||||
shapes = self.layout.getAllShapesInStructureList(layer_num)
|
||||
shapes = self.layout.getAllShapes(layer_num)
|
||||
for boundary in shapes:
|
||||
ll = vector(boundary[0],boundary[1])
|
||||
ur = vector(boundary[2],boundary[3])
|
||||
|
|
@ -626,6 +632,8 @@ class router(router_tech):
|
|||
"""
|
||||
Analyze the shapes of a pin and combine them into groups which are connected.
|
||||
"""
|
||||
debug.info(2,"Analyzing pin groups for {}.".format(pin_name))
|
||||
|
||||
pin_set = self.pins[pin_name]
|
||||
local_debug = False
|
||||
|
||||
|
|
|
|||
|
|
@ -16,22 +16,25 @@ class library_lvs_test(openram_test):
|
|||
import verify
|
||||
|
||||
(gds_dir, sp_dir, allnames) = setup_files()
|
||||
drc_errors = 0
|
||||
lvs_errors = 0
|
||||
debug.info(1, "Performing LVS on: " + ", ".join(allnames))
|
||||
|
||||
for f in allnames:
|
||||
gds_name = "{0}/{1}.gds".format(gds_dir, f)
|
||||
sp_name = "{0}/{1}.sp".format(sp_dir, f)
|
||||
name = re.sub('\.gds$', '', f)
|
||||
if not os.path.isfile(gds_name):
|
||||
lvs_errors += 1
|
||||
debug.error("Missing GDS file {}".format(gds_name))
|
||||
if not os.path.isfile(sp_name):
|
||||
lvs_errors += 1
|
||||
debug.error("Missing SPICE file {}".format(gds_name))
|
||||
drc_errors += verify.run_drc(name, gds_name)
|
||||
lvs_errors += verify.run_lvs(f, gds_name, sp_name)
|
||||
|
||||
# fail if the error count is not zero
|
||||
self.assertEqual(lvs_errors, 0)
|
||||
self.assertEqual(drc_errors+lvs_errors, 0)
|
||||
globals.end_openram()
|
||||
|
||||
def setup_files():
|
||||
|
|
|
|||
Loading…
Reference in New Issue