more updating spr1/spr2 to fast1/fast2

[soc.git] / src / soc / fu / compunits / compunits.py

diff --git a/src/soc/fu/compunits/compunits.py b/src/soc/fu/compunits/compunits.py
index 5c019a32ea74342f70e6109f2a339f6d755855b0..6de63d059dff17e07058c0493547af6897212448 100644 (file)
--- a/src/soc/fu/compunits/compunits.py
+++ b/src/soc/fu/compunits/compunits.py
@@ -96,12 +96,13 @@ class FunctionUnitBaseSingle(MultiCompUnit):
     decoding) which read-register ports are to be requested.  this is not
     ideal (it could be a lot neater) but works for now.
     """
-    def __init__(self, speckls, pipekls):
+    def __init__(self, speckls, pipekls, idx):
+        alu_name = "alu_%s%d" % (self.fnunit.name.lower(), idx)
         pspec = speckls(id_wid=2)                # spec (NNNPipeSpec instance)
         opsubset = pspec.opsubsetkls             # get the operand subset class
         regspec = pspec.regspec                  # get the regspec
         alu = pipekls(pspec)                     # create actual NNNBasePipe
-        super().__init__(regspec, alu, opsubset) # pass to MultiCompUnit
+        super().__init__(regspec, alu, opsubset, name=alu_name) # MultiCompUnit
 
 
 ##############################################################
@@ -116,36 +117,43 @@ class FunctionUnitBaseMulti:
 
 class ALUFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.ALU
-    def __init__(self): super().__init__(ALUPipeSpec, ALUBasePipe)
+    def __init__(self, idx):
+        super().__init__(ALUPipeSpec, ALUBasePipe, idx)
 
 class LogicalFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.LOGICAL
-    def __init__(self): super().__init__(LogicalPipeSpec, LogicalBasePipe)
+    def __init__(self, idx):
+        super().__init__(LogicalPipeSpec, LogicalBasePipe, idx)
 
 class CRFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.CR
-    def __init__(self): super().__init__(CRPipeSpec, CRBasePipe)
+    def __init__(self, idx):
+        super().__init__(CRPipeSpec, CRBasePipe, idx)
 
 class BranchFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.BRANCH
-    def __init__(self): super().__init__(BranchPipeSpec, BranchBasePipe)
+    def __init__(self, idx):
+        super().__init__(BranchPipeSpec, BranchBasePipe, idx)
 
 class ShiftRotFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.SHIFT_ROT
-    def __init__(self): super().__init__(ShiftRotPipeSpec, ShiftRotBasePipe)
+    def __init__(self, idx):
+        super().__init__(ShiftRotPipeSpec, ShiftRotBasePipe, idx)
 
 class DIVFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.DIV
-    def __init__(self): super().__init__(DIVPipeSpec, DIVBasePipe)
+    def __init__(self, idx):
+        super().__init__(DIVPipeSpec, DIVBasePipe, idx)
 
 class TrapFunctionUnit(FunctionUnitBaseSingle):
     fnunit = Function.TRAP
-    def __init__(self): super().__init__(TrapPipeSpec, TrapBasePipe)
+    def __init__(self, idx):
+        super().__init__(TrapPipeSpec, TrapBasePipe, idx)
 
 # special-case
 class LDSTFunctionUnit(LDSTCompUnit):
     fnunit = Function.LDST
-    def __init__(self, pi, awid):
+    def __init__(self, pi, awid, idx):
         pspec = LDSTPipeSpec(id_wid=2)           # spec (NNNPipeSpec instance)
         opsubset = pspec.opsubsetkls             # get the operand subset class
         regspec = pspec.regspec                  # get the regspec
@@ -170,23 +178,29 @@ class AllFunctionUnits(Elaboratable):
      * type of FU required
 
     """
-    def __init__(self, pilist=None, addrwid=6):
+    def __init__(self, pspec, pilist=None):
+        addrwid = pspec.addr_wid
+        units = pspec.units
+        if not isinstance(units, dict):
+            units = {'alu': 1, 'cr': 1, 'branch': 1, 'trap': 1, 'logical': 1,
+                     'div': 1, 'shiftrot': 1}
+        alus = {'alu': ALUFunctionUnit,
+                 'cr': CRFunctionUnit,
+                 'branch': BranchFunctionUnit,
+                 'trap': TrapFunctionUnit,
+                 'div': DIVFunctionUnit,
+                 'logical': LogicalFunctionUnit,
+                 'shiftrot': ShiftRotFunctionUnit,
+                }
         self.fus = {}
-        for (name, qty, kls) in (('alu', 1, ALUFunctionUnit),
-                                 ('cr', 1, CRFunctionUnit),
-                                 ('branch', 1, BranchFunctionUnit),
-                                 ('trap', 1, TrapFunctionUnit),
-                                 # far too large at the moment
-                                 #('div', 1, DIVFunctionUnit),
-                                 ('logical', 1, LogicalFunctionUnit),
-                                 ('shiftrot', 1, ShiftRotFunctionUnit),
-                                ):
+        for name, qty in units.items():
+            kls = alus[name]
             for i in range(qty):
-                self.fus["%s%d" % (name, i)] = kls()
+                self.fus["%s%d" % (name, i)] = kls(i)
         if pilist is None:
             return
         for i, pi in enumerate(pilist):
-            self.fus["ldst%d" % (i)] = LDSTFunctionUnit(pi, addrwid)
+            self.fus["ldst%d" % (i)] = LDSTFunctionUnit(pi, addrwid, i)
 
     def elaborate(self, platform):
         m = Module()
@@ -209,7 +223,7 @@ def tst_single_fus_il():
                         ('trap', TrapFunctionUnit),
                         ('logical', LogicalFunctionUnit),
                         ('shiftrot', ShiftRotFunctionUnit)):
-        fu = kls()
+        fu = kls(0)
         vl = rtlil.convert(fu, ports=fu.ports())
         with open("fu_%s.il" % name, "w") as f:
             f.write(vl)