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-rw-r--r--src/arch/mips/faults.cc216
-rw-r--r--src/arch/mips/faults.hh10
-rwxr-xr-xsrc/arch/mips/interrupts.cc52
-rwxr-xr-xsrc/arch/mips/interrupts.hh25
-rw-r--r--src/arch/mips/isa/decoder.isa4
-rwxr-xr-xsrc/arch/mips/pra_constants.hh36
-rwxr-xr-xsrc/arch/mips/system.cc3
-rw-r--r--src/arch/mips/tlb.cc58
-rw-r--r--src/arch/mips/utility.cc9
9 files changed, 219 insertions, 194 deletions
diff --git a/src/arch/mips/faults.cc b/src/arch/mips/faults.cc
index 01d31e14f..6faab054f 100644
--- a/src/arch/mips/faults.cc
+++ b/src/arch/mips/faults.cc
@@ -175,49 +175,44 @@ MipsFault::setHandlerPC(Addr HandlerBase, ThreadContext *tc)
}
void
-MipsFault::setExceptionState(ThreadContext *tc, uint8_t ExcCode)
+MipsFault::setExceptionState(ThreadContext *tc, uint8_t excCode)
{
// modify SRS Ctl - Save CSS, put ESS into CSS
- MiscReg stat = tc->readMiscReg(MipsISA::Status);
- if (bits(stat, Status_EXL) != 1 && bits(stat, Status_BEV) != 1) {
+ StatusReg status = tc->readMiscReg(Status);
+ if (status.exl != 1 && status.bev != 1) {
// SRS Ctl is modified only if Status_EXL and Status_BEV are not set
- MiscReg srs = tc->readMiscReg(MipsISA::SRSCtl);
- uint8_t CSS, ESS;
- CSS = bits(srs, SRSCtl_CSS_HI, SRSCtl_CSS_LO);
- ESS = bits(srs, SRSCtl_ESS_HI, SRSCtl_ESS_LO);
- // Move CSS to PSS
- replaceBits(srs, SRSCtl_PSS_HI, SRSCtl_PSS_LO, CSS);
- // Move ESS to CSS
- replaceBits(srs, SRSCtl_CSS_HI, SRSCtl_CSS_LO, ESS);
- tc->setMiscRegNoEffect(MipsISA::SRSCtl, srs);
+ SRSCtlReg srsCtl = tc->readMiscReg(SRSCtl);
+ srsCtl.pss = srsCtl.css;
+ srsCtl.css = srsCtl.ess;
+ tc->setMiscRegNoEffect(SRSCtl, srsCtl);
}
// set EXL bit (don't care if it is already set!)
- replaceBits(stat, Status_EXL_HI, Status_EXL_LO, 1);
- tc->setMiscRegNoEffect(MipsISA::Status, stat);
+ status.exl = 1;
+ tc->setMiscRegNoEffect(Status, status);
// write EPC
// CHECK ME or FIXME or FIX ME or POSSIBLE HACK
// Check to see if the exception occurred in the branch delay slot
DPRINTF(MipsPRA, "PC: %x, NextPC: %x, NNPC: %x\n",
tc->readPC(), tc->readNextPC(), tc->readNextNPC());
- int C_BD = 0;
+ int bd = 0;
if (tc->readPC() + sizeof(MachInst) != tc->readNextPC()) {
- tc->setMiscRegNoEffect(MipsISA::EPC, tc->readPC() - sizeof(MachInst));
+ tc->setMiscRegNoEffect(EPC, tc->readPC() - sizeof(MachInst));
// In the branch delay slot? set CAUSE_31
- C_BD = 1;
+ bd = 1;
} else {
- tc->setMiscRegNoEffect(MipsISA::EPC, tc->readPC());
+ tc->setMiscRegNoEffect(EPC, tc->readPC());
// In the branch delay slot? reset CAUSE_31
- C_BD = 0;
+ bd = 0;
}
// Set Cause_EXCCODE field
- MiscReg cause = tc->readMiscReg(MipsISA::Cause);
- replaceBits(cause, Cause_EXCCODE_HI, Cause_EXCCODE_LO, ExcCode);
- replaceBits(cause, Cause_BD_HI, Cause_BD_LO,C_BD);
- replaceBits(cause, Cause_CE_HI, Cause_CE_LO,0);
- tc->setMiscRegNoEffect(MipsISA::Cause, cause);
+ CauseReg cause = tc->readMiscReg(Cause);
+ cause.excCode = excCode;
+ cause.bd = bd;
+ cause.ce = 0;
+ tc->setMiscRegNoEffect(Cause, cause);
}
void
@@ -228,12 +223,12 @@ ArithmeticFault::invoke(ThreadContext *tc)
// Set new PC
Addr HandlerBase;
- MiscReg stat = tc->readMiscReg(MipsISA::Status);
+ StatusReg status = tc->readMiscReg(Status);
// Here, the handler is dependent on BEV, which is not modified by
// setExceptionState()
- if (bits(stat, Status_BEV) == 0 ) {
+ if (!status.bev) {
// See MIPS ARM Vol 3, Revision 2, Page 38
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
} else {
HandlerBase = 0xBFC00200;
}
@@ -245,12 +240,12 @@ StoreAddressErrorFault::invoke(ThreadContext *tc)
{
DPRINTF(MipsPRA, "%s encountered.\n", name());
setExceptionState(tc, 0x5);
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
}
@@ -263,7 +258,7 @@ TrapFault::invoke(ThreadContext *tc)
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
}
@@ -275,7 +270,7 @@ BreakpointFault::invoke(ThreadContext *tc)
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
}
@@ -284,23 +279,24 @@ DtbInvalidFault::invoke(ThreadContext *tc)
{
DPRINTF(MipsPRA, "%s encountered.\n", name());
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
- MiscReg eh = tc->readMiscReg(MipsISA::EntryHi);
- replaceBits(eh, EntryHi_ASID_HI, EntryHi_ASID_LO, EntryHi_Asid);
- replaceBits(eh, EntryHi_VPN2_HI, EntryHi_VPN2_LO, EntryHi_VPN2);
- replaceBits(eh, EntryHi_VPN2X_HI, EntryHi_VPN2X_LO, EntryHi_VPN2X);
- tc->setMiscRegNoEffect(MipsISA::EntryHi, eh);
- MiscReg ctxt = tc->readMiscReg(MipsISA::Context);
- replaceBits(ctxt, Context_BadVPN2_HI, Context_BadVPN2_LO, Context_BadVPN2);
- tc->setMiscRegNoEffect(MipsISA::Context, ctxt);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
+ EntryHiReg entryHi = tc->readMiscReg(EntryHi);
+ entryHi.asid = entryHiAsid;
+ entryHi.vpn2 = entryHiVPN2;
+ entryHi.vpn2x = entryHiVPN2X;
+ tc->setMiscRegNoEffect(EntryHi, entryHi);
+
+ ContextReg context = tc->readMiscReg(Context);
+ context.badVPN2 = contextBadVPN2;
+ tc->setMiscRegNoEffect(Context, context);
setExceptionState(tc, 0x3);
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
- setHandlerPC(HandlerBase,tc);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
+ setHandlerPC(HandlerBase, tc);
}
void
@@ -308,12 +304,12 @@ AddressErrorFault::invoke(ThreadContext *tc)
{
DPRINTF(MipsPRA, "%s encountered.\n", name());
setExceptionState(tc, 0x4);
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
}
@@ -322,50 +318,51 @@ ItbInvalidFault::invoke(ThreadContext *tc)
{
DPRINTF(MipsPRA, "%s encountered.\n", name());
setExceptionState(tc, 0x2);
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
- MiscReg eh = tc->readMiscReg(MipsISA::EntryHi);
- replaceBits(eh, EntryHi_ASID_HI, EntryHi_ASID_LO, EntryHi_Asid);
- replaceBits(eh, EntryHi_VPN2_HI, EntryHi_VPN2_LO, EntryHi_VPN2);
- replaceBits(eh, EntryHi_VPN2X_HI, EntryHi_VPN2X_LO, EntryHi_VPN2X);
- tc->setMiscRegNoEffect(MipsISA::EntryHi, eh);
- MiscReg ctxt = tc->readMiscReg(MipsISA::Context);
- replaceBits(ctxt, Context_BadVPN2_HI, Context_BadVPN2_LO, Context_BadVPN2);
- tc->setMiscRegNoEffect(MipsISA::Context, ctxt);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
+ EntryHiReg entryHi = tc->readMiscReg(EntryHi);
+ entryHi.asid = entryHiAsid;
+ entryHi.vpn2 = entryHiVPN2;
+ entryHi.vpn2x = entryHiVPN2X;
+ tc->setMiscRegNoEffect(EntryHi, entryHi);
+
+ ContextReg context = tc->readMiscReg(Context);
+ context.badVPN2 = contextBadVPN2;
+ tc->setMiscRegNoEffect(Context, context);
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase= vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase,tc);
- DPRINTF(MipsPRA,"Exception Handler At: %x , EPC set to %x\n",
- HandlerBase, tc->readMiscReg(MipsISA::EPC));
+ DPRINTF(MipsPRA, "Exception Handler At: %x , EPC set to %x\n",
+ HandlerBase, tc->readMiscReg(EPC));
}
void
ItbRefillFault::invoke(ThreadContext *tc)
{
- DPRINTF(MipsPRA, "%s encountered (%x).\n", name(), BadVAddr);
+ DPRINTF(MipsPRA, "%s encountered (%x).\n", name(), badVAddr);
Addr HandlerBase;
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
- MiscReg eh = tc->readMiscReg(MipsISA::EntryHi);
- replaceBits(eh, EntryHi_ASID_HI, EntryHi_ASID_LO, EntryHi_Asid);
- replaceBits(eh, EntryHi_VPN2_HI, EntryHi_VPN2_LO, EntryHi_VPN2);
- replaceBits(eh, EntryHi_VPN2X_HI, EntryHi_VPN2X_LO, EntryHi_VPN2X);
- tc->setMiscRegNoEffect(MipsISA::EntryHi, eh);
- MiscReg ctxt = tc->readMiscReg(MipsISA::Context);
- replaceBits(ctxt, Context_BadVPN2_HI, Context_BadVPN2_LO, Context_BadVPN2);
- tc->setMiscRegNoEffect(MipsISA::Context, ctxt);
-
- MiscReg stat = tc->readMiscReg(MipsISA::Status);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
+ EntryHiReg entryHi = tc->readMiscReg(EntryHi);
+ entryHi.asid = entryHiAsid;
+ entryHi.vpn2 = entryHiVPN2;
+ entryHi.vpn2x = entryHiVPN2X;
+ tc->setMiscRegNoEffect(EntryHi, entryHi);
+ ContextReg context = tc->readMiscReg(Context);
+ context.badVPN2 = contextBadVPN2;
+ tc->setMiscRegNoEffect(Context, context);
+
+ StatusReg status = tc->readMiscReg(Status);
// Since handler depends on EXL bit, must check EXL bit before setting it!!
// See MIPS ARM Vol 3, Revision 2, Page 38
- if (bits(stat, Status_EXL) == 1) {
+ if (status.exl == 1) {
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
} else {
// Offset 0x000
- HandlerBase = tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = tc->readMiscReg(EBase);
}
setExceptionState(tc, 0x2);
@@ -378,25 +375,26 @@ DtbRefillFault::invoke(ThreadContext *tc)
// Set new PC
DPRINTF(MipsPRA, "%s encountered.\n", name());
Addr HandlerBase;
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
- MiscReg eh = tc->readMiscReg(MipsISA::EntryHi);
- replaceBits(eh, EntryHi_ASID_HI, EntryHi_ASID_LO, EntryHi_Asid);
- replaceBits(eh, EntryHi_VPN2_HI, EntryHi_VPN2_LO, EntryHi_VPN2);
- replaceBits(eh, EntryHi_VPN2X_HI, EntryHi_VPN2X_LO, EntryHi_VPN2X);
- tc->setMiscRegNoEffect(MipsISA::EntryHi, eh);
- MiscReg ctxt = tc->readMiscReg(MipsISA::Context);
- replaceBits(ctxt, Context_BadVPN2_HI, Context_BadVPN2_LO, Context_BadVPN2);
- tc->setMiscRegNoEffect(MipsISA::Context, ctxt);
-
- MiscReg stat = tc->readMiscReg(MipsISA::Status);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
+ EntryHiReg entryHi = tc->readMiscReg(EntryHi);
+ entryHi.asid = entryHiAsid;
+ entryHi.vpn2 = entryHiVPN2;
+ entryHi.vpn2x = entryHiVPN2X;
+ tc->setMiscRegNoEffect(EntryHi, entryHi);
+
+ ContextReg context = tc->readMiscReg(Context);
+ context.badVPN2 = contextBadVPN2;
+ tc->setMiscRegNoEffect(Context, context);
+
+ StatusReg status = tc->readMiscReg(Status);
// Since handler depends on EXL bit, must check EXL bit before setting it!!
// See MIPS ARM Vol 3, Revision 2, Page 38
- if(bits(stat, Status_EXL) == 1) {
+ if (status.exl) {
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
} else {
// Offset 0x000
- HandlerBase = tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = tc->readMiscReg(EBase);
}
setExceptionState(tc, 0x3);
@@ -408,20 +406,21 @@ void
TLBModifiedFault::invoke(ThreadContext *tc)
{
DPRINTF(MipsPRA, "%s encountered.\n", name());
- tc->setMiscRegNoEffect(MipsISA::BadVAddr, BadVAddr);
- MiscReg eh = tc->readMiscReg(MipsISA::EntryHi);
- replaceBits(eh, EntryHi_ASID_HI, EntryHi_ASID_LO, EntryHi_Asid);
- replaceBits(eh, EntryHi_VPN2_HI, EntryHi_VPN2_LO, EntryHi_VPN2);
- replaceBits(eh, EntryHi_VPN2X_HI, EntryHi_VPN2X_LO, EntryHi_VPN2X);
- tc->setMiscRegNoEffect(MipsISA::EntryHi, eh);
- MiscReg ctxt = tc->readMiscReg(MipsISA::Context);
- replaceBits(ctxt, Context_BadVPN2_HI, Context_BadVPN2_LO, Context_BadVPN2);
- tc->setMiscRegNoEffect(MipsISA::Context, ctxt);
+ tc->setMiscRegNoEffect(BadVAddr, badVAddr);
+ EntryHiReg entryHi = tc->readMiscReg(EntryHi);
+ entryHi.asid = entryHiAsid;
+ entryHi.vpn2 = entryHiVPN2;
+ entryHi.vpn2x = entryHiVPN2X;
+ tc->setMiscRegNoEffect(EntryHi, entryHi);
+
+ ContextReg context = tc->readMiscReg(Context);
+ context.badVPN2 = contextBadVPN2;
+ tc->setMiscRegNoEffect(Context, context);
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setExceptionState(tc, 0x1);
setHandlerPC(HandlerBase, tc);
@@ -436,7 +435,7 @@ SystemCallFault::invoke(ThreadContext *tc)
// Set new PC
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
}
@@ -448,13 +447,13 @@ InterruptFault::invoke(ThreadContext *tc)
setExceptionState(tc, 0x0A);
Addr HandlerBase;
- uint8_t IV = bits(tc->readMiscRegNoEffect(MipsISA::Cause), Cause_IV);
- if (IV) {
+ CauseReg cause = tc->readMiscRegNoEffect(Cause);
+ if (cause.iv) {
// Offset 200 for release 2
- HandlerBase = 0x20 + vect() + tc->readMiscRegNoEffect(MipsISA::EBase);
+ HandlerBase = 0x20 + vect() + tc->readMiscRegNoEffect(EBase);
} else {
//Ofset at 180 for release 1
- HandlerBase = vect() + tc->readMiscRegNoEffect(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscRegNoEffect(EBase);
}
setHandlerPC(HandlerBase, tc);
@@ -472,12 +471,13 @@ ResetFault::invoke(ThreadContext *tc)
tc->setPC(vect());
tc->setNextPC(vect() + sizeof(MachInst));
tc->setNextNPC(vect() + sizeof(MachInst) + sizeof(MachInst));
- DPRINTF(MipsPRA, "(%x) - ResetFault::invoke : PC set to %x",
- (unsigned)tc, (unsigned)tc->readPC());
+ DPRINTF(MipsPRA, "ResetFault::invoke : PC set to %x", tc->readPC());
#endif
// Set Coprocessor 1 (Floating Point) To Usable
- tc->setMiscReg(MipsISA::Status, MipsISA::Status | 0x20000000);
+ StatusReg status = tc->readMiscRegNoEffect(Status);
+ status.cu.cu1 = 1;
+ tc->setMiscReg(Status, status);
}
void
@@ -488,7 +488,7 @@ ReservedInstructionFault::invoke(ThreadContext *tc)
setExceptionState(tc, 0x0A);
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscRegNoEffect(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscRegNoEffect(EBase);
setHandlerPC(HandlerBase, tc);
#else
panic("%s encountered.\n", name());
@@ -517,13 +517,13 @@ CoprocessorUnusableFault::invoke(ThreadContext *tc)
setExceptionState(tc, 0xb);
// The ID of the coprocessor causing the exception is stored in
// CoprocessorUnusableFault::coProcID
- MiscReg cause = tc->readMiscReg(MipsISA::Cause);
- replaceBits(cause, Cause_CE_HI, Cause_CE_LO, coProcID);
- tc->setMiscRegNoEffect(MipsISA::Cause, cause);
+ CauseReg cause = tc->readMiscReg(Cause);
+ cause.ce = coProcID;
+ tc->setMiscRegNoEffect(Cause, cause);
Addr HandlerBase;
// Offset 0x180 - General Exception Vector
- HandlerBase = vect() + tc->readMiscReg(MipsISA::EBase);
+ HandlerBase = vect() + tc->readMiscReg(EBase);
setHandlerPC(HandlerBase, tc);
#else
diff --git a/src/arch/mips/faults.hh b/src/arch/mips/faults.hh
index f2b304e95..7a001d390 100644
--- a/src/arch/mips/faults.hh
+++ b/src/arch/mips/faults.hh
@@ -47,11 +47,11 @@ class MipsFault : public FaultBase
virtual bool skipFaultingInstruction() {return false;}
virtual bool setRestartAddress() {return true;}
public:
- Addr BadVAddr;
- Addr EntryHi_Asid;
- Addr EntryHi_VPN2;
- Addr EntryHi_VPN2X;
- Addr Context_BadVPN2;
+ Addr badVAddr;
+ Addr entryHiAsid;
+ Addr entryHiVPN2;
+ Addr entryHiVPN2X;
+ Addr contextBadVPN2;
#if FULL_SYSTEM
void invoke(ThreadContext * tc) {};
void setExceptionState(ThreadContext *, uint8_t);
diff --git a/src/arch/mips/interrupts.cc b/src/arch/mips/interrupts.cc
index 207bb15da..4b1f37856 100755
--- a/src/arch/mips/interrupts.cc
+++ b/src/arch/mips/interrupts.cc
@@ -31,25 +31,26 @@
* Korey Sewell
*/
-#include "arch/mips/pra_constants.hh"
+#include "arch/mips/interrupts.hh"
#include "arch/mips/isa_traits.hh"
+#include "arch/mips/pra_constants.hh"
+#include "base/trace.hh"
#include "cpu/thread_context.hh"
-#include "arch/mips/interrupts.hh"
namespace MipsISA
{
static inline uint8_t
getCauseIP(ThreadContext *tc) {
- MiscReg cause = tc->readMiscRegNoEffect(MipsISA::Cause);
- return bits(cause, Cause_IP7, Cause_IP0);
+ CauseReg cause = tc->readMiscRegNoEffect(Cause);
+ return cause.ip;
}
static inline void
-setCauseIP_(ThreadContext *tc, uint8_t val) {
- MiscReg cause = tc->readMiscRegNoEffect(MipsISA::Cause);
- replaceBits(cause, Cause_IP7, Cause_IP0, val);
- tc->setMiscRegNoEffect(MipsISA::Cause, cause);
+setCauseIP(ThreadContext *tc, uint8_t val) {
+ CauseReg cause = tc->readMiscRegNoEffect(Cause);
+ cause.ip = val;
+ tc->setMiscRegNoEffect(Cause, cause);
}
void
@@ -110,21 +111,17 @@ Interrupts::getInterrupt(ThreadContext * tc)
DPRINTF(Interrupt, "Interrupts getInterrupt\n");
//Check if there are any outstanding interrupts
- MiscReg status = tc->readMiscRegNoEffect(MipsISA::Status);
+ StatusReg status = tc->readMiscRegNoEffect(Status);
// Interrupts must be enabled, error level must be 0 or interrupts
// inhibited, and exception level must be 0 or interrupts inhibited
- if (bits(status, Status_IE_LO) == 1 &&
- bits(status, Status_ERL_HI, Status_ERL_LO) == 0 &&
- bits(status, Status_EXL_HI, Status_EXL_LO) == 0) {
+ if ((status.ie == 1) && (status.erl == 0) && (status.exl == 0)) {
// Software interrupts & hardware interrupts are handled in software.
// So if any interrupt that isn't masked is detected, jump to interrupt
// handler
- uint8_t InterruptMask = bits(status, Status_IM7, Status_IM0);
- uint8_t InterruptPending = getCauseIP(tc);
- // InterruptMask and InterruptPending are already correctly aligned
- if (InterruptMask && InterruptPending){
+ CauseReg cause = tc->readMiscRegNoEffect(Cause);
+ if (status.im && cause.ip) {
DPRINTF(Interrupt, "Interrupt! IM[7:0]=%d IP[7:0]=%d \n",
- InterruptMask, InterruptPending);
+ (unsigned)status.im, (unsigned)cause.ip);
return new InterruptFault;
}
}
@@ -135,8 +132,8 @@ Interrupts::getInterrupt(ThreadContext * tc)
bool
Interrupts::onCpuTimerInterrupt(ThreadContext * tc) const
{
- MiscReg compare = tc->readMiscRegNoEffect(MipsISA::Compare);
- MiscReg count = tc->readMiscRegNoEffect(MipsISA::Count);
+ MiscReg compare = tc->readMiscRegNoEffect(Compare);
+ MiscReg count = tc->readMiscRegNoEffect(Count);
if (compare == count && count != 0)
return true;
return false;
@@ -156,13 +153,10 @@ Interrupts::interruptsPending(ThreadContext *tc) const
if (onCpuTimerInterrupt(tc)) {
DPRINTF(Interrupt, "Interrupts OnCpuTimerINterrupt(tc) == true\n");
//determine timer interrupt IP #
- MiscReg intctl = tc->readMiscRegNoEffect(MipsISA::IntCtl);
- uint8_t IPTI = bits(intctl, IntCtl_IPTI_HI, IntCtl_IPTI_LO);
- //set intstatus to correspond
- //post(IPTI, tc);
- uint8_t intstatus = getCauseIP(tc);
- intstatus |= 1 << IPTI;
- setCauseIP(tc, intstatus);
+ IntCtlReg intCtl = tc->readMiscRegNoEffect(IntCtl);
+ uint8_t intStatus = getCauseIP(tc);
+ intStatus |= 1 << intCtl.ipti;
+ setCauseIP(tc, intStatus);
}
return (getCauseIP(tc) != 0);
@@ -170,3 +164,9 @@ Interrupts::interruptsPending(ThreadContext *tc) const
}
}
+
+MipsISA::Interrupts *
+MipsInterruptsParams::create()
+{
+ return new MipsISA::Interrupts(this);
+}
diff --git a/src/arch/mips/interrupts.hh b/src/arch/mips/interrupts.hh
index 13d4f8512..c852bc9d0 100755
--- a/src/arch/mips/interrupts.hh
+++ b/src/arch/mips/interrupts.hh
@@ -31,20 +31,41 @@
#ifndef __ARCH_MIPS_INTERRUPT_HH__
#define __ARCH_MIPS_INTERRUPT_HH__
+#include <string>
+
#include "arch/mips/faults.hh"
#include "base/compiler.hh"
+#include "base/misc.hh"
+#include "params/MipsInterrupts.hh"
+#include "sim/serialize.hh"
+#include "sim/sim_object.hh"
+
+class BaseCPU;
+class Checkpoint;
namespace MipsISA
{
-class Interrupts
+class Interrupts : public SimObject
{
public:
- Interrupts()
+ typedef MipsInterruptsParams Params;
+
+ const Params *
+ params() const
+ {
+ return dynamic_cast<const Params *>(_params);
+ }
+
+ Interrupts(Params * p) : SimObject(p)
{
newInfoSet = false;
}
+ void
+ setCPU(BaseCPU *_cpu)
+ {}
+
// post(int int_num, int index) is responsible
// for posting an interrupt. It sets a bit
// in intstatus corresponding to Cause IP*. The
diff --git a/src/arch/mips/isa/decoder.isa b/src/arch/mips/isa/decoder.isa
index 7a6d5db05..60bc15513 100644
--- a/src/arch/mips/isa/decoder.isa
+++ b/src/arch/mips/isa/decoder.isa
@@ -771,7 +771,7 @@ decode OPCODE_HI default Unknown::unknown() {
NewEntry.OffsetMask = ((1<<NewEntry.AddrShiftAmount)-1);
MipsISA::TLB *Ptr = xc->tcBase()->getITBPtr();
- Config3Reg config3 = Config3
+ Config3Reg config3 = Config3;
PageGrainReg pageGrain = PageGrain;
int SP = 0;
if (bits(config3, config3.sp) == 1 &&
@@ -836,7 +836,7 @@ decode OPCODE_HI default Unknown::unknown() {
NewEntry.OffsetMask = ((1 << NewEntry.AddrShiftAmount) - 1);
MipsISA::TLB *Ptr = xc->tcBase()->getITBPtr();
- Config3Reg config3 = Config3
+ Config3Reg config3 = Config3;
PageGrainReg pageGrain = PageGrain;
int SP = 0;
if (bits(config3, config3.sp) == 1 &&
diff --git a/src/arch/mips/pra_constants.hh b/src/arch/mips/pra_constants.hh
index 129f4185f..971501493 100755
--- a/src/arch/mips/pra_constants.hh
+++ b/src/arch/mips/pra_constants.hh
@@ -120,14 +120,16 @@ BitUnion32(StatusReg)
// Bit 18 is zero
Bitfield<17, 16> impl;
Bitfield<15, 10> ipl;
- Bitfield<15> im7;
- Bitfield<14> im6;
- Bitfield<13> im5;
- Bitfield<12> im4;
- Bitfield<11> im3;
- Bitfield<10> im2;
- Bitfield<9> im1;
- Bitfield<8> im0;
+ SubBitUnion(im, 15, 8)
+ Bitfield<15> im7;
+ Bitfield<14> im6;
+ Bitfield<13> im5;
+ Bitfield<12> im4;
+ Bitfield<11> im3;
+ Bitfield<10> im2;
+ Bitfield<9> im1;
+ Bitfield<8> im0;
+ EndSubBitUnion(im)
Bitfield<7> kx;
Bitfield<6> sx;
Bitfield<5> ux;
@@ -182,14 +184,16 @@ BitUnion32(CauseReg)
Bitfield<22> wp;
// Bits 21-16 are zeros
Bitfield<15, 10> ripl;
- Bitfield<15> ip7;
- Bitfield<14> ip6;
- Bitfield<13> ip5;
- Bitfield<12> ip4;
- Bitfield<11> ip3;
- Bitfield<10> ip2;
- Bitfield<9> ip1;
- Bitfield<8> ip0;
+ SubBitUnion(ip, 15, 8)
+ Bitfield<15> ip7;
+ Bitfield<14> ip6;
+ Bitfield<13> ip5;
+ Bitfield<12> ip4;
+ Bitfield<11> ip3;
+ Bitfield<10> ip2;
+ Bitfield<9> ip1;
+ Bitfield<8> ip0;
+ EndSubBitUnion(ip);
// Bit 7 is zero
Bitfield<6, 2> excCode;
// Bits 1-0 are zeros
diff --git a/src/arch/mips/system.cc b/src/arch/mips/system.cc
index ac900b6db..57310fa77 100755
--- a/src/arch/mips/system.cc
+++ b/src/arch/mips/system.cc
@@ -51,7 +51,7 @@ MipsSystem::MipsSystem(Params *p) : System(p)
#if FULL_SYSTEM
if (p->bare_iron == true) {
hexFile = new HexFile(params()->hex_file_name);
- if (!hexFile->loadSections(&functionalPort, MipsISA::LoadAddrMask))
+ if (!hexFile->loadSections(&functionalPort))
panic("Could not load hex file\n");
}
@@ -93,7 +93,6 @@ MipsSystem::MipsSystem(Params *p) : System(p)
*/
if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
warn("writing addr starting from %#x", addr);
- cout << "-" << endl;
virtPort.writeBlob(addr, (uint8_t*)params()->boot_osflags.c_str(),
strlen(params()->boot_osflags.c_str()));
}
diff --git a/src/arch/mips/tlb.cc b/src/arch/mips/tlb.cc
index 3a8d400ae..37c1ecee3 100644
--- a/src/arch/mips/tlb.cc
+++ b/src/arch/mips/tlb.cc
@@ -315,7 +315,7 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
req->isMisaligned()) {
AddressErrorFault *Flt = new AddressErrorFault();
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
return Flt;
}
} else if(IsKSeg1(req->getVaddr())) {
@@ -338,7 +338,7 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
// Unaligned address!
AddressErrorFault *Flt = new AddressErrorFault();
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
return Flt;
}
PTE *pte = lookup(VPN,Asid);
@@ -361,15 +361,15 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
//Invalid entry
ItbInvalidFault *Flt = new ItbInvalidFault();
/* EntryHi VPN, ASID fields must be set */
- Flt->EntryHi_Asid = Asid;
- Flt->EntryHi_VPN2 = (VPN >> 2);
- Flt->EntryHi_VPN2X = (VPN & 0x3);
+ Flt->entryHiAsid = Asid;
+ Flt->entryHiVPN2 = (VPN >> 2);
+ Flt->entryHiVPN2X = (VPN & 0x3);
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
/* Context must be set */
- Flt->Context_BadVPN2 = (VPN >> 2);
+ Flt->contextBadVPN2 = (VPN >> 2);
return Flt;
} else {
// Ok, this is really a match, set paddr
@@ -388,15 +388,15 @@ TLB::translateInst(RequestPtr req, ThreadContext *tc)
// Didn't find any match, return a TLB Refill Exception
ItbRefillFault *Flt=new ItbRefillFault();
/* EntryHi VPN, ASID fields must be set */
- Flt->EntryHi_Asid = Asid;
- Flt->EntryHi_VPN2 = (VPN >> 2);
- Flt->EntryHi_VPN2X = (VPN & 0x3);
+ Flt->entryHiAsid = Asid;
+ Flt->entryHiVPN2 = (VPN >> 2);
+ Flt->entryHiVPN2X = (VPN & 0x3);
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
/* Context must be set */
- Flt->Context_BadVPN2 = (VPN >> 2);
+ Flt->contextBadVPN2 = (VPN >> 2);
return Flt;
}
}
@@ -435,7 +435,7 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
req->isMisaligned()) {
StoreAddressErrorFault *Flt = new StoreAddressErrorFault();
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
return Flt;
}
@@ -458,7 +458,7 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
// Unaligned address!
StoreAddressErrorFault *Flt = new StoreAddressErrorFault();
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
return Flt;
}
if (pte != NULL) {
@@ -483,15 +483,15 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
//Invalid entry
DtbInvalidFault *Flt = new DtbInvalidFault();
/* EntryHi VPN, ASID fields must be set */
- Flt->EntryHi_Asid = Asid;
- Flt->EntryHi_VPN2 = (VPN>>2);
- Flt->EntryHi_VPN2X = (VPN & 0x3);
+ Flt->entryHiAsid = Asid;
+ Flt->entryHiVPN2 = (VPN>>2);
+ Flt->entryHiVPN2X = (VPN & 0x3);
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
/* Context must be set */
- Flt->Context_BadVPN2 = (VPN >> 2);
+ Flt->contextBadVPN2 = (VPN >> 2);
return Flt;
} else {
@@ -499,15 +499,15 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
if (!Dirty) {
TLBModifiedFault *Flt = new TLBModifiedFault();
/* EntryHi VPN, ASID fields must be set */
- Flt->EntryHi_Asid = Asid;
- Flt->EntryHi_VPN2 = (VPN >> 2);
- Flt->EntryHi_VPN2X = (VPN & 0x3);
+ Flt->entryHiAsid = Asid;
+ Flt->entryHiVPN2 = (VPN >> 2);
+ Flt->entryHiVPN2X = (VPN & 0x3);
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
/* Context must be set */
- Flt->Context_BadVPN2 = (VPN >> 2);
+ Flt->contextBadVPN2 = (VPN >> 2);
return Flt;
}
Addr PAddr;
@@ -525,15 +525,15 @@ TLB::translateData(RequestPtr req, ThreadContext *tc, bool write)
// Didn't find any match, return a TLB Refill Exception
DtbRefillFault *Flt = new DtbRefillFault();
/* EntryHi VPN, ASID fields must be set */
- Flt->EntryHi_Asid = Asid;
- Flt->EntryHi_VPN2 = (VPN >> 2);
- Flt->EntryHi_VPN2X = (VPN & 0x3);
+ Flt->entryHiAsid = Asid;
+ Flt->entryHiVPN2 = (VPN >> 2);
+ Flt->entryHiVPN2X = (VPN & 0x3);
/* BadVAddr must be set */
- Flt->BadVAddr = req->getVaddr();
+ Flt->badVAddr = req->getVaddr();
/* Context must be set */
- Flt->Context_BadVPN2 = (VPN >> 2);
+ Flt->contextBadVPN2 = (VPN >> 2);
return Flt;
}
}
diff --git a/src/arch/mips/utility.cc b/src/arch/mips/utility.cc
index 4723d6301..ac90ce45e 100644
--- a/src/arch/mips/utility.cc
+++ b/src/arch/mips/utility.cc
@@ -38,6 +38,7 @@
#include "base/misc.hh"
#if FULL_SYSTEM
+#include "arch/mips/registers.hh"
#include "arch/mips/vtophys.hh"
#include "mem/vport.hh"
#endif
@@ -52,16 +53,16 @@ uint64_t
getArgument(ThreadContext *tc, int number, bool fp)
{
#if FULL_SYSTEM
- if (number < NumArgumentRegs) {
+ if (number < 4) {
if (fp)
- return tc->readFloatRegBits(ArgumentReg[number]);
+ return tc->readFloatRegBits(FirstArgumentReg + number);
else
- return tc->readIntReg(ArgumentReg[number]);
+ return tc->readIntReg(FirstArgumentReg + number);
} else {
Addr sp = tc->readIntReg(StackPointerReg);
VirtualPort *vp = tc->getVirtPort();
uint64_t arg = vp->read<uint64_t>(sp +
- (number-NumArgumentRegs) * sizeof(uint64_t));
+ (number - 4) * sizeof(uint64_t));
return arg;
}
#else
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 01:37:18 +0000