Some clean up work with faults.

[gem5.git] / arch / alpha / faults.cc

diff --git a/arch/alpha/faults.cc b/arch/alpha/faults.cc
index e05b3fe59871d8a434f9b271e32a4d4db2d00031..c840b68428d07000b0529900c01586237d00f2a1 100644 (file)
--- a/arch/alpha/faults.cc
+++ b/arch/alpha/faults.cc
@@ -27,54 +27,108 @@
  */
 
 #include "arch/alpha/faults.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/base.hh"
+#include "base/trace.hh"
+
+namespace AlphaISA
+{
+
+FaultName MachineCheckFault::_name = "mchk";
+FaultVect MachineCheckFault::_vect = 0x0401;
+FaultStat MachineCheckFault::_count;
+
+FaultName AlignmentFault::_name = "unalign";
+FaultVect AlignmentFault::_vect = 0x0301;
+FaultStat AlignmentFault::_count;
+
+FaultName ResetFault::_name = "reset";
+FaultVect ResetFault::_vect = 0x0001;
+FaultStat ResetFault::_count;
+
+FaultName ArithmeticFault::_name = "arith";
+FaultVect ArithmeticFault::_vect = 0x0501;
+FaultStat ArithmeticFault::_count;
+
+FaultName InterruptFault::_name = "interrupt";
+FaultVect InterruptFault::_vect = 0x0101;
+FaultStat InterruptFault::_count;
+
+FaultName NDtbMissFault::_name = "dtb_miss_single";
+FaultVect NDtbMissFault::_vect = 0x0201;
+FaultStat NDtbMissFault::_count;
+
+FaultName PDtbMissFault::_name = "dtb_miss_double";
+FaultVect PDtbMissFault::_vect = 0x0281;
+FaultStat PDtbMissFault::_count;
+
+FaultName DtbPageFault::_name = "dfault";
+FaultVect DtbPageFault::_vect = 0x0381;
+FaultStat DtbPageFault::_count;
+
+FaultName DtbAcvFault::_name = "dfault";
+FaultVect DtbAcvFault::_vect = 0x0381;
+FaultStat DtbAcvFault::_count;
+
+FaultName ItbMissFault::_name = "itbmiss";
+FaultVect ItbMissFault::_vect = 0x0181;
+FaultStat ItbMissFault::_count;
+
+FaultName ItbPageFault::_name = "itbmiss";
+FaultVect ItbPageFault::_vect = 0x0181;
+FaultStat ItbPageFault::_count;
+
+FaultName ItbAcvFault::_name = "iaccvio";
+FaultVect ItbAcvFault::_vect = 0x0081;
+FaultStat ItbAcvFault::_count;
+
+FaultName UnimplementedOpcodeFault::_name = "opdec";
+FaultVect UnimplementedOpcodeFault::_vect = 0x0481;
+FaultStat UnimplementedOpcodeFault::_count;
+
+FaultName FloatEnableFault::_name = "fen";
+FaultVect FloatEnableFault::_vect = 0x0581;
+FaultStat FloatEnableFault::_count;
+
+FaultName PalFault::_name = "pal";
+FaultVect PalFault::_vect = 0x2001;
+FaultStat PalFault::_count;
+
+FaultName IntegerOverflowFault::_name = "intover";
+FaultVect IntegerOverflowFault::_vect = 0x0501;
+FaultStat IntegerOverflowFault::_count;
+
+#if FULL_SYSTEM
+
+void AlphaFault::invoke(ExecContext * xc)
+{
+    FaultBase::invoke(xc);
+    countStat()++;
+
+    // exception restart address
+    if (setRestartAddress() || !xc->inPalMode())
+        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, xc->regs.pc);
+
+    if (skipFaultingInstruction()) {
+        // traps...  skip faulting instruction.
+        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
+                   xc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
+    }
+
+    if (!xc->inPalMode())
+        AlphaISA::swap_palshadow(&(xc->regs), true);
+
+    xc->regs.pc = xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
+    xc->regs.npc = xc->regs.pc + sizeof(MachInst);
+}
+
+void ArithmeticFault::invoke(ExecContext * xc)
+{
+    FaultBase::invoke(xc);
+    panic("Arithmetic traps are unimplemented!");
+}
+
+#endif
+
+} // namespace AlphaISA
 
-ResetFaultType * const ResetFault =
-    new ResetFaultType("reset", 1, 0x0001);
-ArithmeticFaultType * const ArithmeticFault =
-    new ArithmeticFaultType("arith", 3, 0x0501);
-InterruptFaultType * const InterruptFault =
-    new InterruptFaultType("interrupt", 4, 0x0101);
-NDtbMissFaultType * const NDtbMissFault =
-    new NDtbMissFaultType("dtb_miss_single", 5, 0x0201);
-PDtbMissFaultType * const PDtbMissFault =
-    new PDtbMissFaultType("dtb_miss_double", 6, 0x0281);
-DtbPageFaultType * const DtbPageFault =
-    new DtbPageFaultType("dfault", 8, 0x0381);
-DtbAcvFaultType * const DtbAcvFault =
-    new DtbAcvFaultType("dfault", 9, 0x0381);
-ItbMissFaultType * const ItbMissFault =
-    new ItbMissFaultType("itbmiss", 10, 0x0181);
-ItbPageFaultType * const ItbPageFault =
-    new ItbPageFaultType("itbmiss", 11, 0x0181);
-ItbAcvFaultType * const ItbAcvFault =
-    new ItbAcvFaultType("iaccvio", 12, 0x0081);
-UnimplementedOpcodeFaultType * const UnimplementedOpcodeFault =
-    new UnimplementedOpcodeFaultType("opdec", 13, 0x0481);
-FloatEnableFaultType * const FloatEnableFault =
-    new FloatEnableFaultType("fen", 14, 0x0581);
-PalFaultType * const PalFault =
-    new PalFaultType("pal", 15, 0x2001);
-IntegerOverflowFaultType * const IntegerOverflowFault =
-    new IntegerOverflowFaultType("intover", 16, 0x0501);
-
-Fault ** ListOfFaults[] = {
-        (Fault **)&NoFault,
-        (Fault **)&ResetFault,
-        (Fault **)&MachineCheckFault,
-        (Fault **)&ArithmeticFault,
-        (Fault **)&InterruptFault,
-        (Fault **)&NDtbMissFault,
-        (Fault **)&PDtbMissFault,
-        (Fault **)&AlignmentFault,
-        (Fault **)&DtbPageFault,
-        (Fault **)&DtbAcvFault,
-        (Fault **)&ItbMissFault,
-        (Fault **)&ItbPageFault,
-        (Fault **)&ItbAcvFault,
-        (Fault **)&UnimplementedOpcodeFault,
-        (Fault **)&FloatEnableFault,
-        (Fault **)&PalFault,
-        (Fault **)&IntegerOverflowFault,
-        };
-
-int NumFaults = sizeof(ListOfFaults) / sizeof(Fault **);