mips: cleanup ISA-specific code
[gem5.git] / src / cpu / BaseCPU.py
index 6c2aace5153aec13ef700d678f71ab43afb9c010..bf7577cc758b8ba2ec5237a96d3a9ce7bf85a2f3 100644 (file)
@@ -1,4 +1,5 @@
-# Copyright (c) 2005-2007 The Regents of The University of Michigan
+# Copyright (c) 2005-2008 The Regents of The University of Michigan
+# Copyright (c) 2011 Regents of the University of California
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Nathan Binkert
+#          Rick Strong
 
-from m5.SimObject import SimObject
+import sys
+
+from m5.defines import buildEnv
 from m5.params import *
 from m5.proxy import *
-from m5 import build_env
+
 from Bus import Bus
-import sys
+from InstTracer import InstTracer
+from ExeTracer import ExeTracer
+from MemObject import MemObject
 
-if build_env['FULL_SYSTEM']:
-    if build_env['TARGET_ISA'] == 'alpha':
-        from AlphaTLB import AlphaDTB, AlphaITB
+default_tracer = ExeTracer()
 
-    if build_env['TARGET_ISA'] == 'sparc':
-        from SparcTLB import SparcDTB, SparcITB
+if buildEnv['TARGET_ISA'] == 'alpha':
+    from AlphaTLB import AlphaDTB, AlphaITB
+    if buildEnv['FULL_SYSTEM']:
+        from AlphaInterrupts import AlphaInterrupts
+elif buildEnv['TARGET_ISA'] == 'sparc':
+    from SparcTLB import SparcTLB
+    if buildEnv['FULL_SYSTEM']:
+        from SparcInterrupts import SparcInterrupts
+elif buildEnv['TARGET_ISA'] == 'x86':
+    from X86TLB import X86TLB
+    if buildEnv['FULL_SYSTEM']:
+        from X86LocalApic import X86LocalApic
+elif buildEnv['TARGET_ISA'] == 'mips':
+    from MipsTLB import MipsTLB
+    if buildEnv['FULL_SYSTEM']:
+        from MipsInterrupts import MipsInterrupts
+elif buildEnv['TARGET_ISA'] == 'arm':
+    from ArmTLB import ArmTLB
+    if buildEnv['FULL_SYSTEM']:
+        from ArmInterrupts import ArmInterrupts
+elif buildEnv['TARGET_ISA'] == 'power':
+    from PowerTLB import PowerTLB
+    if buildEnv['FULL_SYSTEM']:
+        from PowerInterrupts import PowerInterrupts
 
-class BaseCPU(SimObject):
+class BaseCPU(MemObject):
     type = 'BaseCPU'
     abstract = True
 
     system = Param.System(Parent.any, "system object")
-    cpu_id = Param.Int("CPU identifier")
+    cpu_id = Param.Int(-1, "CPU identifier")
+    numThreads = Param.Unsigned(1, "number of HW thread contexts")
+
+    function_trace = Param.Bool(False, "Enable function trace")
+    function_trace_start = Param.Tick(0, "Cycle to start function trace")
+
+    checker = Param.BaseCPU(NULL, "checker CPU")
+
+    do_checkpoint_insts = Param.Bool(True,
+        "enable checkpoint pseudo instructions")
+    do_statistics_insts = Param.Bool(True,
+        "enable statistics pseudo instructions")
 
-    if build_env['FULL_SYSTEM']:
+    if buildEnv['FULL_SYSTEM']:
+        profile = Param.Latency('0ns', "trace the kernel stack")
         do_quiesce = Param.Bool(True, "enable quiesce instructions")
-        do_checkpoint_insts = Param.Bool(True,
-            "enable checkpoint pseudo instructions")
-        do_statistics_insts = Param.Bool(True,
-            "enable statistics pseudo instructions")
-
-        if build_env['TARGET_ISA'] == 'sparc':
-            dtb = Param.SparcDTB(SparcDTB(), "Data TLB")
-            itb = Param.SparcITB(SparcITB(), "Instruction TLB")
-        elif build_env['TARGET_ISA'] == 'alpha':
-            dtb = Param.AlphaDTB(AlphaDTB(), "Data TLB")
-            itb = Param.AlphaITB(AlphaITB(), "Instruction TLB")
-        else:
-            print "Unknown architecture, can't pick TLBs"
-            sys.exit(1)
     else:
         workload = VectorParam.Process("processes to run")
 
+    if buildEnv['TARGET_ISA'] == 'sparc':
+        dtb = Param.SparcTLB(SparcTLB(), "Data TLB")
+        itb = Param.SparcTLB(SparcTLB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            interrupts = Param.SparcInterrupts(
+                SparcInterrupts(), "Interrupt Controller")
+    elif buildEnv['TARGET_ISA'] == 'alpha':
+        dtb = Param.AlphaTLB(AlphaDTB(), "Data TLB")
+        itb = Param.AlphaTLB(AlphaITB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            interrupts = Param.AlphaInterrupts(
+                AlphaInterrupts(), "Interrupt Controller")
+    elif buildEnv['TARGET_ISA'] == 'x86':
+        dtb = Param.X86TLB(X86TLB(), "Data TLB")
+        itb = Param.X86TLB(X86TLB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            _localApic = X86LocalApic(pio_addr=0x2000000000000000)
+            interrupts = \
+                Param.X86LocalApic(_localApic, "Interrupt Controller")
+    elif buildEnv['TARGET_ISA'] == 'mips':
+        dtb = Param.MipsTLB(MipsTLB(), "Data TLB")
+        itb = Param.MipsTLB(MipsTLB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            interrupts = Param.MipsInterrupts(
+                    MipsInterrupts(), "Interrupt Controller")
+    elif buildEnv['TARGET_ISA'] == 'arm':
+        dtb = Param.ArmTLB(ArmTLB(), "Data TLB")
+        itb = Param.ArmTLB(ArmTLB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            interrupts = Param.ArmInterrupts(
+                    ArmInterrupts(), "Interrupt Controller")
+    elif buildEnv['TARGET_ISA'] == 'power':
+        UnifiedTLB = Param.Bool(True, "Is this a Unified TLB?")
+        dtb = Param.PowerTLB(PowerTLB(), "Data TLB")
+        itb = Param.PowerTLB(PowerTLB(), "Instruction TLB")
+        if buildEnv['FULL_SYSTEM']:
+            interrupts = Param.PowerInterrupts(
+                    PowerInterrupts(), "Interrupt Controller")
+    else:
+        print "Don't know what TLB to use for ISA %s" % \
+            buildEnv['TARGET_ISA']
+        sys.exit(1)
+
     max_insts_all_threads = Param.Counter(0,
         "terminate when all threads have reached this inst count")
     max_insts_any_thread = Param.Counter(0,
@@ -83,24 +150,52 @@ class BaseCPU(SimObject):
     clock = Param.Clock('1t', "clock speed")
     phase = Param.Latency('0ns', "clock phase")
 
-    _mem_ports = []
+    tracer = Param.InstTracer(default_tracer, "Instruction tracer")
+
+    _cached_ports = []
+    if buildEnv['TARGET_ISA'] in ['x86', 'arm'] and buildEnv['FULL_SYSTEM']:
+        _cached_ports = ["itb.walker.port", "dtb.walker.port"]
+
+    _uncached_ports = []
+    if buildEnv['TARGET_ISA'] == 'x86' and buildEnv['FULL_SYSTEM']:
+        _uncached_ports = ["interrupts.pio", "interrupts.int_port"]
 
-    def connectMemPorts(self, bus):
-        for p in self._mem_ports:
+    def connectCachedPorts(self, bus):
+        for p in self._cached_ports:
             exec('self.%s = bus.port' % p)
 
-    def addPrivateSplitL1Caches(self, ic, dc):
-        assert(len(self._mem_ports) == 2)
+    def connectUncachedPorts(self, bus):
+        for p in self._uncached_ports:
+            exec('self.%s = bus.port' % p)
+
+    def connectAllPorts(self, cached_bus, uncached_bus = None):
+        self.connectCachedPorts(cached_bus)
+        if not uncached_bus:
+            uncached_bus = cached_bus
+        self.connectUncachedPorts(uncached_bus)
+
+    def addPrivateSplitL1Caches(self, ic, dc, iwc = None, dwc = None):
+        assert(len(self._cached_ports) < 7)
         self.icache = ic
         self.dcache = dc
         self.icache_port = ic.cpu_side
         self.dcache_port = dc.cpu_side
-        self._mem_ports = ['icache.mem_side', 'dcache.mem_side']
+        self._cached_ports = ['icache.mem_side', 'dcache.mem_side']
+        if buildEnv['FULL_SYSTEM']:
+            if buildEnv['TARGET_ISA'] == 'x86':
+                self.itb_walker_cache = iwc
+                self.dtb_walker_cache = dwc
+                self.itb.walker.port = iwc.cpu_side
+                self.dtb.walker.port = dwc.cpu_side
+                self._cached_ports += ["itb_walker_cache.mem_side", \
+                                       "dtb_walker_cache.mem_side"]
+            elif buildEnv['TARGET_ISA'] == 'arm':
+                self._cached_ports += ["itb.walker.port", "dtb.walker.port"]
 
-    def addTwoLevelCacheHierarchy(self, ic, dc, l2c):
-        self.addPrivateSplitL1Caches(ic, dc)
+    def addTwoLevelCacheHierarchy(self, ic, dc, l2c, iwc = None, dwc = None):
+        self.addPrivateSplitL1Caches(ic, dc, iwc, dwc)
         self.toL2Bus = Bus()
-        self.connectMemPorts(self.toL2Bus)
+        self.connectCachedPorts(self.toL2Bus)
         self.l2cache = l2c
         self.l2cache.cpu_side = self.toL2Bus.port
-        self._mem_ports = ['l2cache.mem_side']
+        self._cached_ports = ['l2cache.mem_side']