From 770b575c30e734b3ed9528558a72c476a9e4bf41 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 8 Nov 2006 10:27:38 -0500
Subject: [PATCH] Sorted faults by the trap type constant, expanded their
 names, added in new faults for ua2005, and commented out ones which are
 apparently dropped.

--HG--
extra : convert_revision : 32bd0c3a75d7c036ad4a3cb0bc1c32e0b6cb3d87
---
 src/arch/sparc/faults.cc | 180 ++++++++++++++++++++++++++++++---------
 src/arch/sparc/faults.hh | 161 +++++++++++++++++++++-------------
 2 files changed, 244 insertions(+), 97 deletions(-)

diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 6a905a76c..ebd9926b2 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -50,118 +50,222 @@ namespace SparcISA
 {
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<InternalProcessorError>::vals = {"intprocerr", 0x029, 4};
+    SparcFault<PowerOnReset>::vals =
+    {"power_on_reset", 0x001, 0, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<MemAddressNotAligned>::vals = {"unalign", 0x034, 10};
+    SparcFault<WatchDogReset>::vals =
+    {"watch_dog_reset", 0x002, 120, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<PowerOnReset>::vals = {"pow_reset", 0x001, 0};
+    SparcFault<ExternallyInitiatedReset>::vals =
+    {"externally_initiated_reset", 0x003, 110, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<WatchDogReset>::vals = {"watch_dog_reset", 0x002, 1};
+    SparcFault<SoftwareInitiatedReset>::vals =
+    {"software_initiated_reset", 0x004, 130, {SH, SH, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<ExternallyInitiatedReset>::vals = {"extern_reset", 0x003, 1};
+    SparcFault<REDStateException>::vals =
+    {"RED_state_exception", 0x005, 1, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<SoftwareInitiatedReset>::vals = {"software_reset", 0x004, 1};
+    SparcFault<StoreError>::vals =
+    {"store_error", 0x007, 201, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<REDStateException>::vals = {"red_counte", 0x005, 1};
+    SparcFault<InstructionAccessException>::vals =
+    {"instruction_access_exception", 0x008, 300, {H, H, H}};
+
+//XXX This trap is apparently dropped from ua2005
+/*template<> SparcFaultBase::FaultVals
+    SparcFault<InstructionAccessMMUMiss>::vals =
+    {"inst_mmu", 0x009, 2, {H, H, H}};*/
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<InstructionAccessError>::vals =
+    {"instruction_access_error", 0x00A, 400, {H, H, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<IllegalInstruction>::vals =
+    {"illegal_instruction", 0x010, 620, {H, H, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<PrivilegedOpcode>::vals =
+    {"privileged_opcode", 0x011, 700, {P, SH, SH}};
+
+//XXX This trap is apparently dropped from ua2005
+/*template<> SparcFaultBase::FaultVals
+    SparcFault<UnimplementedLDD>::vals =
+    {"unimp_ldd", 0x012, 6, {H, H, H}};*/
+
+//XXX This trap is apparently dropped from ua2005
+/*template<> SparcFaultBase::FaultVals
+    SparcFault<UnimplementedSTD>::vals =
+    {"unimp_std", 0x013, 6, {H, H, H}};*/
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<FpDisabled>::vals =
+    {"fp_disabled", 0x020, 800, {P, P, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<FpExceptionIEEE754>::vals =
+    {"fp_exception_ieee_754", 0x021, 1110, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<InstructionAccessException>::vals = {"inst_access", 0x008, 5};
+    SparcFault<FpExceptionOther>::vals =
+    {"fp_exception_other", 0x022, 1110, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<InstructionAccessMMUMiss>::vals = {"inst_mmu", 0x009, 2};
+    SparcFault<TagOverflow>::vals =
+    {"tag_overflow", 0x023, 1400, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<InstructionAccessError>::vals = {"inst_error", 0x00A, 3};
+    SparcFault<CleanWindow>::vals =
+    {"clean_window", 0x024, 1010, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<IllegalInstruction>::vals = {"illegal_inst", 0x010, 7};
+    SparcFault<DivisionByZero>::vals =
+    {"division_by_zero", 0x028, 1500, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<PrivilegedOpcode>::vals = {"priv_opcode", 0x011, 6};
+    SparcFault<InternalProcessorError>::vals =
+    {"internal_processor_error", 0x029, 4, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<UnimplementedLDD>::vals = {"unimp_ldd", 0x012, 6};
+    SparcFault<InstructionInvalidTSBEntry>::vals =
+    {"instruction_invalid_tsb_entry", 0x02A, 210, {H, H, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<UnimplementedSTD>::vals = {"unimp_std", 0x013, 6};
+    SparcFault<DataInvalidTSBEntry>::vals =
+    {"data_invalid_tsb_entry", 0x02B, 1203, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<FpDisabled>::vals = {"fp_disabled", 0x020, 8};
+    SparcFault<DataAccessException>::vals =
+    {"data_access_exception", 0x030, 1201, {H, H, H}};
+
+//XXX This trap is apparently dropped from ua2005
+/*template<> SparcFaultBase::FaultVals
+    SparcFault<DataAccessMMUMiss>::vals =
+    {"data_mmu", 0x031, 12, {H, H, H}};*/
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<DataAccessError>::vals =
+    {"data_access_error", 0x032, 1210, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<FpExceptionIEEE754>::vals = {"fp_754", 0x021, 11};
+    SparcFault<DataAccessProtection>::vals =
+    {"data_access_protection", 0x033, 1207, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<FpExceptionOther>::vals = {"fp_other", 0x022, 11};
+    SparcFault<MemAddressNotAligned>::vals =
+    {"mem_address_not_aligned", 0x034, 1020, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<TagOverflow>::vals = {"tag_overflow", 0x023, 14};
+    SparcFault<LDDFMemAddressNotAligned>::vals =
+    {"LDDF_mem_address_not_aligned", 0x035, 1010, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<DivisionByZero>::vals = {"div_by_zero", 0x028, 15};
+    SparcFault<STDFMemAddressNotAligned>::vals =
+    {"STDF_mem_address_not_aligned", 0x036, 1010, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<DataAccessException>::vals = {"data_access", 0x030, 12};
+    SparcFault<PrivilegedAction>::vals =
+    {"privileged_action", 0x037, 1110, {H, H, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<DataAccessMMUMiss>::vals = {"data_mmu", 0x031, 12};
+    SparcFault<LDQFMemAddressNotAligned>::vals =
+    {"LDQF_mem_address_not_aligned", 0x038, 1010, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<DataAccessError>::vals = {"data_error", 0x032, 12};
+    SparcFault<STQFMemAddressNotAligned>::vals =
+    {"STQF_mem_address_not_aligned", 0x039, 1010, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<DataAccessProtection>::vals = {"data_protection", 0x033, 12};
+    SparcFault<InstructionRealTranslationMiss>::vals =
+    {"instruction_real_translation_miss", 0x03E, 208, {H, H, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<LDDFMemAddressNotAligned>::vals = {"unalign_lddf", 0x035, 10};
+    SparcFault<DataRealTranslationMiss>::vals =
+    {"data_real_translation_miss", 0x03F, 1203, {H, H, H}};
+
+//XXX This trap is apparently dropped from ua2005
+/*template<> SparcFaultBase::FaultVals
+    SparcFault<AsyncDataError>::vals =
+    {"async_data", 0x040, 2, {H, H, H}};*/
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<STDFMemAddressNotAligned>::vals = {"unalign_stdf", 0x036, 10};
+    SparcFault<InterruptLevelN>::vals =
+    {"interrupt_level_n", 0x041, 0, {P, P, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<PrivilegedAction>::vals = {"priv_action", 0x037, 11};
+    SparcFault<HstickMatch>::vals =
+    {"hstick_match", 0x05E, 1601, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<LDQFMemAddressNotAligned>::vals = {"unalign_ldqf", 0x038, 10};
+    SparcFault<TrapLevelZero>::vals =
+    {"trap_level_zero", 0x05F, 202, {H, H, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<STQFMemAddressNotAligned>::vals = {"unalign_stqf", 0x039, 10};
+    SparcFault<PAWatchpoint>::vals =
+    {"PA_watchpoint", 0x061, 1209, {H, H, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<AsyncDataError>::vals = {"async_data", 0x040, 2};
+    SparcFault<VAWatchpoint>::vals =
+    {"VA_watchpoint", 0x062, 1120, {P, P, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<CleanWindow>::vals = {"clean_win", 0x024, 10};
+    SparcFault<FastInstructionAccessMMUMiss>::vals =
+    {"fast_instruction_access_MMU_miss", 0x064, 208, {H, H, SH}};
 
-//The enumerated faults
+template<> SparcFaultBase::FaultVals
+    SparcFault<FastDataAccessMMUMiss>::vals =
+    {"fast_data_access_MMU_miss", 0x068, 1203, {H, H, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<FastDataAccessProtection>::vals =
+    {"fast_data_access_protection", 0x06C, 1207, {H, H, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<InstructionBreakpoint>::vals =
+    {"instruction_break", 0x076, 610, {H, H, H}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<CpuMondo>::vals =
+    {"cpu_mondo", 0x07C, 1608, {P, P, SH}};
+
+template<> SparcFaultBase::FaultVals
+    SparcFault<DevMondo>::vals =
+    {"dev_mondo", 0x07D, 1611, {P, P, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<InterruptLevelN>::vals = {"interrupt_n", 0x041, 0};
+    SparcFault<ResumeableError>::vals =
+    {"resume_error", 0x07E, 3330, {P, P, SH}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<SpillNNormal>::vals = {"spill_n_normal", 0x080, 9};
+    SparcFault<SpillNNormal>::vals =
+    {"spill_n_normal", 0x080, 900, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<SpillNOther>::vals = {"spill_n_other", 0x0A0, 9};
+    SparcFault<SpillNOther>::vals =
+    {"spill_n_other", 0x0A0, 900, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<FillNNormal>::vals = {"fill_n_normal", 0x0C0, 9};
+    SparcFault<FillNNormal>::vals =
+    {"fill_n_normal", 0x0C0, 900, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<FillNOther>::vals = {"fill_n_other", 0x0E0, 9};
+    SparcFault<FillNOther>::vals =
+    {"fill_n_other", 0x0E0, 900, {P, P, H}};
 
 template<> SparcFaultBase::FaultVals
-    SparcFault<TrapInstruction>::vals = {"trap_inst_n", 0x100, 16};
+    SparcFault<TrapInstruction>::vals =
+    {"trap_instruction", 0x100, 1602, {P, P, H}};
 
 #if !FULL_SYSTEM
 template<> SparcFaultBase::FaultVals
-    SparcFault<PageTableFault>::vals = {"page_table_fault", 0x0000, 0};
+    SparcFault<PageTableFault>::vals =
+    {"page_table_fault", 0x0000, 0, {SH, SH, SH}};
 #endif
 
 /**
diff --git a/src/arch/sparc/faults.hh b/src/arch/sparc/faults.hh
index 9cc7739d9..e632502aa 100644
--- a/src/arch/sparc/faults.hh
+++ b/src/arch/sparc/faults.hh
@@ -45,11 +45,21 @@ typedef uint32_t FaultPriority;
 class SparcFaultBase : public FaultBase
 {
   public:
+    enum PrivilegeLevel
+    {
+        U, User = U,
+        P, Privileged = P,
+        H, Hyperprivileged = H,
+        NumLevels,
+        SH = -1,
+        ShouldntHappen = SH
+    };
     struct FaultVals
     {
         const FaultName name;
         const TrapType trapType;
         const FaultPriority priority;
+        const PrivilegeLevel nextPrivilegeLevel[NumLevels];
         FaultStat count;
     };
 #if FULL_SYSTEM
@@ -59,6 +69,7 @@ class SparcFaultBase : public FaultBase
     virtual TrapType trapType() = 0;
     virtual FaultPriority priority() = 0;
     virtual FaultStat & countStat() = 0;
+    virtual PrivilegeLevel getNextLevel(PrivilegeLevel current) = 0;
 };
 
 template<typename T>
@@ -71,48 +82,12 @@ class SparcFault : public SparcFaultBase
     TrapType trapType() {return vals.trapType;}
     FaultPriority priority() {return vals.priority;}
     FaultStat & countStat() {return vals.count;}
+    PrivilegeLevel getNextLevel(PrivilegeLevel current)
+    {
+        return vals.nextPrivilegeLevel[current];
+    }
 };
 
-class InternalProcessorError :
-    public SparcFault<InternalProcessorError>
-{
-  public:
-    bool isMachineCheckFault() {return true;}
-};
-
-class MemAddressNotAligned :
-    public SparcFault<MemAddressNotAligned>
-{
-  public:
-    bool isAlignmentFault() {return true;}
-};
-
-#if !FULL_SYSTEM
-class PageTableFault : public SparcFault<PageTableFault>
-{
-  private:
-    Addr vaddr;
-  public:
-    PageTableFault(Addr va) : vaddr(va) {}
-    void invoke(ThreadContext * tc);
-};
-
-static inline Fault genPageTableFault(Addr va)
-{
-    return new PageTableFault(va);
-}
-#endif
-
-static inline Fault genMachineCheckFault()
-{
-    return new InternalProcessorError;
-}
-
-static inline Fault genAlignmentFault()
-{
-    return new MemAddressNotAligned;
-}
-
 class PowerOnReset : public SparcFault<PowerOnReset>
 {
     void invoke(ThreadContext * tc);
@@ -126,9 +101,11 @@ class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {};
 
 class REDStateException : public SparcFault<REDStateException> {};
 
+class StoreError : public SparcFault<StoreError> {};
+
 class InstructionAccessException : public SparcFault<InstructionAccessException> {};
 
-class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
+//class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
 
 class InstructionAccessError : public SparcFault<InstructionAccessError> {};
 
@@ -136,9 +113,9 @@ class IllegalInstruction : public SparcFault<IllegalInstruction> {};
 
 class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {};
 
-class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
+//class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
 
-class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
+//class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
 
 class FpDisabled : public SparcFault<FpDisabled> {};
 
@@ -148,16 +125,36 @@ class FpExceptionOther : public SparcFault<FpExceptionOther> {};
 
 class TagOverflow : public SparcFault<TagOverflow> {};
 
+class CleanWindow : public SparcFault<CleanWindow> {};
+
 class DivisionByZero : public SparcFault<DivisionByZero> {};
 
+class InternalProcessorError :
+    public SparcFault<InternalProcessorError>
+{
+  public:
+    bool isMachineCheckFault() {return true;}
+};
+
+class InstructionInvalidTSBEntry : public SparcFault<InstructionInvalidTSBEntry> {};
+
+class DataInvalidTSBEntry : public SparcFault<DataInvalidTSBEntry> {};
+
 class DataAccessException : public SparcFault<DataAccessException> {};
 
-class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
+//class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
 
 class DataAccessError : public SparcFault<DataAccessError> {};
 
 class DataAccessProtection : public SparcFault<DataAccessProtection> {};
 
+class MemAddressNotAligned :
+    public SparcFault<MemAddressNotAligned>
+{
+  public:
+    bool isAlignmentFault() {return true;}
+};
+
 class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {};
 
 class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {};
@@ -168,9 +165,12 @@ class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {};
 
 class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {};
 
-class AsyncDataError : public SparcFault<AsyncDataError> {};
+class InstructionRealTranslationMiss :
+    public SparcFault<InstructionRealTranslationMiss> {};
 
-class CleanWindow : public SparcFault<CleanWindow> {};
+class DataRealTranslationMiss : public SparcFault<DataRealTranslationMiss> {};
+
+//class AsyncDataError : public SparcFault<AsyncDataError> {};
 
 template <class T>
 class EnumeratedFault : public SparcFault<T>
@@ -185,16 +185,37 @@ class EnumeratedFault : public SparcFault<T>
 class InterruptLevelN : public EnumeratedFault<InterruptLevelN>
 {
   public:
-    InterruptLevelN(uint32_t n) :
-        EnumeratedFault<InterruptLevelN>(n) {;}
-    FaultPriority priority() {return 32 - _n;}
+    InterruptLevelN(uint32_t n) : EnumeratedFault<InterruptLevelN>(n) {;}
+    FaultPriority priority() {return 3200 - _n*100;}
 };
 
+class HstickMatch : public SparcFault<HstickMatch> {};
+
+class TrapLevelZero : public SparcFault<TrapLevelZero> {};
+
+class PAWatchpoint : public SparcFault<PAWatchpoint> {};
+
+class VAWatchpoint : public SparcFault<VAWatchpoint> {};
+
+class FastInstructionAccessMMUMiss :
+    public SparcFault<FastInstructionAccessMMUMiss> {};
+
+class FastDataAccessMMUMiss : public SparcFault<FastDataAccessMMUMiss> {};
+
+class FastDataAccessProtection : public SparcFault<FastDataAccessProtection> {};
+
+class InstructionBreakpoint : public SparcFault<InstructionBreakpoint> {};
+
+class CpuMondo : public SparcFault<CpuMondo> {};
+
+class DevMondo : public SparcFault<DevMondo> {};
+
+class ResumeableError : public SparcFault<ResumeableError> {};
+
 class SpillNNormal : public EnumeratedFault<SpillNNormal>
 {
   public:
-    SpillNNormal(uint32_t n) :
-        EnumeratedFault<SpillNNormal>(n) {;}
+    SpillNNormal(uint32_t n) : EnumeratedFault<SpillNNormal>(n) {;}
     //These need to be handled specially to enable spill traps in SE
 #if !FULL_SYSTEM
     void invoke(ThreadContext * tc);
@@ -204,15 +225,13 @@ class SpillNNormal : public EnumeratedFault<SpillNNormal>
 class SpillNOther : public EnumeratedFault<SpillNOther>
 {
   public:
-    SpillNOther(uint32_t n) :
-        EnumeratedFault<SpillNOther>(n) {;}
+    SpillNOther(uint32_t n) : EnumeratedFault<SpillNOther>(n) {;}
 };
 
 class FillNNormal : public EnumeratedFault<FillNNormal>
 {
   public:
-    FillNNormal(uint32_t n) :
-        EnumeratedFault<FillNNormal>(n) {;}
+    FillNNormal(uint32_t n) : EnumeratedFault<FillNNormal>(n) {;}
     //These need to be handled specially to enable fill traps in SE
 #if !FULL_SYSTEM
     void invoke(ThreadContext * tc);
@@ -222,18 +241,42 @@ class FillNNormal : public EnumeratedFault<FillNNormal>
 class FillNOther : public EnumeratedFault<FillNOther>
 {
   public:
-    FillNOther(uint32_t n) :
-        EnumeratedFault<FillNOther>(n) {;}
+    FillNOther(uint32_t n) : EnumeratedFault<FillNOther>(n) {;}
 };
 
 class TrapInstruction : public EnumeratedFault<TrapInstruction>
 {
 
   public:
-    TrapInstruction(uint32_t n) :
-        EnumeratedFault<TrapInstruction>(n) {;}
+    TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n) {;}
+};
+
+#if !FULL_SYSTEM
+class PageTableFault : public SparcFault<PageTableFault>
+{
+  private:
+    Addr vaddr;
+  public:
+    PageTableFault(Addr va) : vaddr(va) {}
+    void invoke(ThreadContext * tc);
 };
 
+static inline Fault genPageTableFault(Addr va)
+{
+    return new PageTableFault(va);
+}
+#endif
+
+static inline Fault genMachineCheckFault()
+{
+    return new InternalProcessorError;
+}
+
+static inline Fault genAlignmentFault()
+{
+    return new MemAddressNotAligned;
+}
+
 
 } // SparcISA namespace
 
-- 
2.30.2