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authorNathan Binkert <binkertn@umich.edu>2005-06-04 20:50:10 -0400
committerNathan Binkert <binkertn@umich.edu>2005-06-04 20:50:10 -0400
commit13c005a8af79a8481879ce099b45a1f98faae165 (patch)
tree3125dfe10539270433981b39119dd727295c255c /cpu/beta_cpu/regfile.hh
parent5a94e6f2cc6ed8480063da68d20274ced2930925 (diff)
downloadgem5-13c005a8af79a8481879ce099b45a1f98faae165.tar.xz
shuffle files around for new directory structure
--HG-- rename : cpu/base_cpu.cc => cpu/base.cc rename : cpu/base_cpu.hh => cpu/base.hh rename : cpu/beta_cpu/2bit_local_pred.cc => cpu/o3/2bit_local_pred.cc rename : cpu/beta_cpu/2bit_local_pred.hh => cpu/o3/2bit_local_pred.hh rename : cpu/beta_cpu/alpha_full_cpu.cc => cpu/o3/alpha_cpu.cc rename : cpu/beta_cpu/alpha_full_cpu.hh => cpu/o3/alpha_cpu.hh rename : cpu/beta_cpu/alpha_full_cpu_builder.cc => cpu/o3/alpha_cpu_builder.cc rename : cpu/beta_cpu/alpha_full_cpu_impl.hh => cpu/o3/alpha_cpu_impl.hh rename : cpu/beta_cpu/alpha_dyn_inst.cc => cpu/o3/alpha_dyn_inst.cc rename : cpu/beta_cpu/alpha_dyn_inst.hh => cpu/o3/alpha_dyn_inst.hh rename : cpu/beta_cpu/alpha_dyn_inst_impl.hh => cpu/o3/alpha_dyn_inst_impl.hh rename : cpu/beta_cpu/alpha_impl.hh => cpu/o3/alpha_impl.hh rename : cpu/beta_cpu/alpha_params.hh => cpu/o3/alpha_params.hh rename : cpu/beta_cpu/bpred_unit.cc => cpu/o3/bpred_unit.cc rename : cpu/beta_cpu/bpred_unit.hh => cpu/o3/bpred_unit.hh rename : cpu/beta_cpu/bpred_unit_impl.hh => cpu/o3/bpred_unit_impl.hh rename : cpu/beta_cpu/btb.cc => cpu/o3/btb.cc rename : cpu/beta_cpu/btb.hh => cpu/o3/btb.hh rename : cpu/beta_cpu/comm.hh => cpu/o3/comm.hh rename : cpu/beta_cpu/commit.cc => cpu/o3/commit.cc rename : cpu/beta_cpu/commit.hh => cpu/o3/commit.hh rename : cpu/beta_cpu/commit_impl.hh => cpu/o3/commit_impl.hh rename : cpu/beta_cpu/full_cpu.cc => cpu/o3/cpu.cc rename : cpu/beta_cpu/full_cpu.hh => cpu/o3/cpu.hh rename : cpu/beta_cpu/cpu_policy.hh => cpu/o3/cpu_policy.hh rename : cpu/beta_cpu/decode.cc => cpu/o3/decode.cc rename : cpu/beta_cpu/decode.hh => cpu/o3/decode.hh rename : cpu/beta_cpu/decode_impl.hh => cpu/o3/decode_impl.hh rename : cpu/beta_cpu/fetch.cc => cpu/o3/fetch.cc rename : cpu/beta_cpu/fetch.hh => cpu/o3/fetch.hh rename : cpu/beta_cpu/fetch_impl.hh => cpu/o3/fetch_impl.hh rename : cpu/beta_cpu/free_list.cc => cpu/o3/free_list.cc rename : cpu/beta_cpu/free_list.hh => cpu/o3/free_list.hh rename : cpu/beta_cpu/iew.cc => cpu/o3/iew.cc rename : cpu/beta_cpu/iew.hh => cpu/o3/iew.hh rename : cpu/beta_cpu/iew_impl.hh => cpu/o3/iew_impl.hh rename : cpu/beta_cpu/inst_queue.cc => cpu/o3/inst_queue.cc rename : cpu/beta_cpu/inst_queue.hh => cpu/o3/inst_queue.hh rename : cpu/beta_cpu/inst_queue_impl.hh => cpu/o3/inst_queue_impl.hh rename : cpu/beta_cpu/mem_dep_unit.cc => cpu/o3/mem_dep_unit.cc rename : cpu/beta_cpu/mem_dep_unit.hh => cpu/o3/mem_dep_unit.hh rename : cpu/beta_cpu/mem_dep_unit_impl.hh => cpu/o3/mem_dep_unit_impl.hh rename : cpu/beta_cpu/ras.cc => cpu/o3/ras.cc rename : cpu/beta_cpu/ras.hh => cpu/o3/ras.hh rename : cpu/beta_cpu/regfile.hh => cpu/o3/regfile.hh rename : cpu/beta_cpu/rename.cc => cpu/o3/rename.cc rename : cpu/beta_cpu/rename.hh => cpu/o3/rename.hh rename : cpu/beta_cpu/rename_impl.hh => cpu/o3/rename_impl.hh rename : cpu/beta_cpu/rename_map.cc => cpu/o3/rename_map.cc rename : cpu/beta_cpu/rename_map.hh => cpu/o3/rename_map.hh rename : cpu/beta_cpu/rob.cc => cpu/o3/rob.cc rename : cpu/beta_cpu/rob.hh => cpu/o3/rob.hh rename : cpu/beta_cpu/rob_impl.hh => cpu/o3/rob_impl.hh rename : cpu/beta_cpu/sat_counter.cc => cpu/o3/sat_counter.cc rename : cpu/beta_cpu/sat_counter.hh => cpu/o3/sat_counter.hh rename : cpu/beta_cpu/store_set.cc => cpu/o3/store_set.cc rename : cpu/beta_cpu/store_set.hh => cpu/o3/store_set.hh rename : cpu/beta_cpu/tournament_pred.cc => cpu/o3/tournament_pred.cc rename : cpu/beta_cpu/tournament_pred.hh => cpu/o3/tournament_pred.hh rename : cpu/ooo_cpu/ooo_cpu.cc => cpu/ozone/cpu.cc rename : cpu/ooo_cpu/ooo_cpu.hh => cpu/ozone/cpu.hh rename : cpu/ooo_cpu/ooo_impl.hh => cpu/ozone/cpu_impl.hh rename : cpu/ooo_cpu/ea_list.cc => cpu/ozone/ea_list.cc rename : cpu/ooo_cpu/ea_list.hh => cpu/ozone/ea_list.hh rename : cpu/simple_cpu/simple_cpu.cc => cpu/simple/cpu.cc rename : cpu/simple_cpu/simple_cpu.hh => cpu/simple/cpu.hh rename : cpu/full_cpu/smt.hh => cpu/smt.hh rename : cpu/full_cpu/op_class.hh => encumbered/cpu/full/op_class.hh extra : convert_revision : c4a891d8d6d3e0e9e5ea56be47d851da44d8c032
Diffstat (limited to 'cpu/beta_cpu/regfile.hh')
-rw-r--r--cpu/beta_cpu/regfile.hh634
1 files changed, 0 insertions, 634 deletions
diff --git a/cpu/beta_cpu/regfile.hh b/cpu/beta_cpu/regfile.hh
deleted file mode 100644
index a41f68e8c..000000000
--- a/cpu/beta_cpu/regfile.hh
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- * Copyright (c) 2004-2005 The Regents of The University of Michigan
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met: redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer;
- * redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution;
- * neither the name of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __CPU_BETA_CPU_REGFILE_HH__
-#define __CPU_BETA_CPU_REGFILE_HH__
-
-// @todo: Destructor
-
-#include "arch/alpha/isa_traits.hh"
-#include "base/trace.hh"
-#include "cpu/beta_cpu/comm.hh"
-
-#ifdef FULL_SYSTEM
-#include "arch/alpha/ev5.hh"
-#include "kern/kernel_stats.hh"
-
-using namespace EV5;
-#endif
-
-// This really only depends on the ISA, and not the Impl. It might be nicer
-// to see if I can make it depend on nothing...
-// Things that are in the ifdef FULL_SYSTEM are pretty dependent on the ISA,
-// and should go in the AlphaFullCPU.
-
-template <class Impl>
-class PhysRegFile
-{
- //Note that most of the definitions of the IntReg, FloatReg, etc. exist
- //within the Impl/ISA class and not within this PhysRegFile class.
-
- //Will need some way to allow stuff like swap_palshadow to access the
- //correct registers. Might require code changes to swap_palshadow and
- //other execution contexts.
-
- //Will make these registers public for now, but they probably should
- //be private eventually with some accessor functions.
- public:
- typedef typename Impl::ISA ISA;
- typedef typename Impl::FullCPU FullCPU;
-
- PhysRegFile(unsigned _numPhysicalIntRegs,
- unsigned _numPhysicalFloatRegs);
-
- //Everything below should be pretty well identical to the normal
- //register file that exists within AlphaISA class.
- //The duplication is unfortunate but it's better than having
- //different ways to access certain registers.
-
- //Add these in later when everything else is in place
-// void serialize(std::ostream &os);
-// void unserialize(Checkpoint *cp, const std::string &section);
-
- uint64_t readIntReg(PhysRegIndex reg_idx)
- {
- assert(reg_idx < numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Access to int register %i, has data "
- "%i\n", int(reg_idx), intRegFile[reg_idx]);
- return intRegFile[reg_idx];
- }
-
- float readFloatRegSingle(PhysRegIndex reg_idx)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Access to float register %i as single, has "
- "data %8.8f\n", int(reg_idx), (float)floatRegFile[reg_idx].d);
-
- return (float)floatRegFile[reg_idx].d;
- }
-
- double readFloatRegDouble(PhysRegIndex reg_idx)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Access to float register %i as double, has "
- " data %8.8f\n", int(reg_idx), floatRegFile[reg_idx].d);
-
- return floatRegFile[reg_idx].d;
- }
-
- uint64_t readFloatRegInt(PhysRegIndex reg_idx)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Access to float register %i as int, has data "
- "%lli\n", int(reg_idx), floatRegFile[reg_idx].q);
-
- return floatRegFile[reg_idx].q;
- }
-
- void setIntReg(PhysRegIndex reg_idx, uint64_t val)
- {
- assert(reg_idx < numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Setting int register %i to %lli\n",
- int(reg_idx), val);
-
- intRegFile[reg_idx] = val;
- }
-
- void setFloatRegSingle(PhysRegIndex reg_idx, float val)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Setting float register %i to %8.8f\n",
- int(reg_idx), val);
-
- floatRegFile[reg_idx].d = (double)val;
- }
-
- void setFloatRegDouble(PhysRegIndex reg_idx, double val)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Setting float register %i to %8.8f\n",
- int(reg_idx), val);
-
- floatRegFile[reg_idx].d = val;
- }
-
- void setFloatRegInt(PhysRegIndex reg_idx, uint64_t val)
- {
- // Remove the base Float reg dependency.
- reg_idx = reg_idx - numPhysicalIntRegs;
-
- assert(reg_idx < numPhysicalFloatRegs + numPhysicalIntRegs);
-
- DPRINTF(IEW, "RegFile: Setting float register %i to %lli\n",
- int(reg_idx), val);
-
- floatRegFile[reg_idx].q = val;
- }
-
- uint64_t readPC()
- {
- return pc;
- }
-
- void setPC(uint64_t val)
- {
- pc = val;
- }
-
- void setNextPC(uint64_t val)
- {
- npc = val;
- }
-
- //Consider leaving this stuff and below in some implementation specific
- //file as opposed to the general register file. Or have a derived class.
- uint64_t readUniq()
- {
- return miscRegs.uniq;
- }
-
- void setUniq(uint64_t val)
- {
- miscRegs.uniq = val;
- }
-
- uint64_t readFpcr()
- {
- return miscRegs.fpcr;
- }
-
- void setFpcr(uint64_t val)
- {
- miscRegs.fpcr = val;
- }
-
-#ifdef FULL_SYSTEM
- uint64_t readIpr(int idx, Fault &fault);
- Fault setIpr(int idx, uint64_t val);
- InternalProcReg *getIpr() { return ipr; }
- int readIntrFlag() { return intrflag; }
- void setIntrFlag(int val) { intrflag = val; }
-#endif
-
- // These should be private eventually, but will be public for now
- // so that I can hack around the initregs issue.
- public:
- /** (signed) integer register file. */
- IntReg *intRegFile;
-
- /** Floating point register file. */
- FloatReg *floatRegFile;
-
- /** Miscellaneous register file. */
- MiscRegFile miscRegs;
-
- /** Program counter. */
- Addr pc;
-
- /** Next-cycle program counter. */
- Addr npc;
-
-#ifdef FULL_SYSTEM
- private:
- // This is ISA specifc stuff; remove it eventually once ISAImpl is used
- IntReg palregs[NumIntRegs]; // PAL shadow registers
- InternalProcReg ipr[NumInternalProcRegs]; // internal processor regs
- int intrflag; // interrupt flag
- bool pal_shadow; // using pal_shadow registers
-#endif
-
- private:
- FullCPU *cpu;
-
- public:
- void setCPU(FullCPU *cpu_ptr) { cpu = cpu_ptr; }
-
- unsigned numPhysicalIntRegs;
- unsigned numPhysicalFloatRegs;
-};
-
-template <class Impl>
-PhysRegFile<Impl>::PhysRegFile(unsigned _numPhysicalIntRegs,
- unsigned _numPhysicalFloatRegs)
- : numPhysicalIntRegs(_numPhysicalIntRegs),
- numPhysicalFloatRegs(_numPhysicalFloatRegs)
-{
- intRegFile = new IntReg[numPhysicalIntRegs];
- floatRegFile = new FloatReg[numPhysicalFloatRegs];
-
- memset(intRegFile, 0, sizeof(*intRegFile));
- memset(floatRegFile, 0, sizeof(*floatRegFile));
-}
-
-#ifdef FULL_SYSTEM
-
-//Problem: This code doesn't make sense at the RegFile level because it
-//needs things such as the itb and dtb. Either put it at the CPU level or
-//the DynInst level.
-template <class Impl>
-uint64_t
-PhysRegFile<Impl>::readIpr(int idx, Fault &fault)
-{
- uint64_t retval = 0; // return value, default 0
-
- switch (idx) {
- case ISA::IPR_PALtemp0:
- case ISA::IPR_PALtemp1:
- case ISA::IPR_PALtemp2:
- case ISA::IPR_PALtemp3:
- case ISA::IPR_PALtemp4:
- case ISA::IPR_PALtemp5:
- case ISA::IPR_PALtemp6:
- case ISA::IPR_PALtemp7:
- case ISA::IPR_PALtemp8:
- case ISA::IPR_PALtemp9:
- case ISA::IPR_PALtemp10:
- case ISA::IPR_PALtemp11:
- case ISA::IPR_PALtemp12:
- case ISA::IPR_PALtemp13:
- case ISA::IPR_PALtemp14:
- case ISA::IPR_PALtemp15:
- case ISA::IPR_PALtemp16:
- case ISA::IPR_PALtemp17:
- case ISA::IPR_PALtemp18:
- case ISA::IPR_PALtemp19:
- case ISA::IPR_PALtemp20:
- case ISA::IPR_PALtemp21:
- case ISA::IPR_PALtemp22:
- case ISA::IPR_PALtemp23:
- case ISA::IPR_PAL_BASE:
-
- case ISA::IPR_IVPTBR:
- case ISA::IPR_DC_MODE:
- case ISA::IPR_MAF_MODE:
- case ISA::IPR_ISR:
- case ISA::IPR_EXC_ADDR:
- case ISA::IPR_IC_PERR_STAT:
- case ISA::IPR_DC_PERR_STAT:
- case ISA::IPR_MCSR:
- case ISA::IPR_ASTRR:
- case ISA::IPR_ASTER:
- case ISA::IPR_SIRR:
- case ISA::IPR_ICSR:
- case ISA::IPR_ICM:
- case ISA::IPR_DTB_CM:
- case ISA::IPR_IPLR:
- case ISA::IPR_INTID:
- case ISA::IPR_PMCTR:
- // no side-effect
- retval = ipr[idx];
- break;
-
- case ISA::IPR_CC:
- retval |= ipr[idx] & ULL(0xffffffff00000000);
- retval |= curTick & ULL(0x00000000ffffffff);
- break;
-
- case ISA::IPR_VA:
- retval = ipr[idx];
- break;
-
- case ISA::IPR_VA_FORM:
- case ISA::IPR_MM_STAT:
- case ISA::IPR_IFAULT_VA_FORM:
- case ISA::IPR_EXC_MASK:
- case ISA::IPR_EXC_SUM:
- retval = ipr[idx];
- break;
-
- case ISA::IPR_DTB_PTE:
- {
- typename ISA::PTE &pte = cpu->dtb->index(1);
-
- retval |= ((u_int64_t)pte.ppn & ULL(0x7ffffff)) << 32;
- retval |= ((u_int64_t)pte.xre & ULL(0xf)) << 8;
- retval |= ((u_int64_t)pte.xwe & ULL(0xf)) << 12;
- retval |= ((u_int64_t)pte.fonr & ULL(0x1)) << 1;
- retval |= ((u_int64_t)pte.fonw & ULL(0x1))<< 2;
- retval |= ((u_int64_t)pte.asma & ULL(0x1)) << 4;
- retval |= ((u_int64_t)pte.asn & ULL(0x7f)) << 57;
- }
- break;
-
- // write only registers
- case ISA::IPR_HWINT_CLR:
- case ISA::IPR_SL_XMIT:
- case ISA::IPR_DC_FLUSH:
- case ISA::IPR_IC_FLUSH:
- case ISA::IPR_ALT_MODE:
- case ISA::IPR_DTB_IA:
- case ISA::IPR_DTB_IAP:
- case ISA::IPR_ITB_IA:
- case ISA::IPR_ITB_IAP:
- fault = Unimplemented_Opcode_Fault;
- break;
-
- default:
- // invalid IPR
- fault = Unimplemented_Opcode_Fault;
- break;
- }
-
- return retval;
-}
-
-extern int break_ipl;
-
-template <class Impl>
-Fault
-PhysRegFile<Impl>::setIpr(int idx, uint64_t val)
-{
- uint64_t old;
-
- switch (idx) {
- case ISA::IPR_PALtemp0:
- case ISA::IPR_PALtemp1:
- case ISA::IPR_PALtemp2:
- case ISA::IPR_PALtemp3:
- case ISA::IPR_PALtemp4:
- case ISA::IPR_PALtemp5:
- case ISA::IPR_PALtemp6:
- case ISA::IPR_PALtemp7:
- case ISA::IPR_PALtemp8:
- case ISA::IPR_PALtemp9:
- case ISA::IPR_PALtemp10:
- case ISA::IPR_PALtemp11:
- case ISA::IPR_PALtemp12:
- case ISA::IPR_PALtemp13:
- case ISA::IPR_PALtemp14:
- case ISA::IPR_PALtemp15:
- case ISA::IPR_PALtemp16:
- case ISA::IPR_PALtemp17:
- case ISA::IPR_PALtemp18:
- case ISA::IPR_PALtemp19:
- case ISA::IPR_PALtemp20:
- case ISA::IPR_PALtemp21:
- case ISA::IPR_PALtemp22:
- case ISA::IPR_PAL_BASE:
- case ISA::IPR_IC_PERR_STAT:
- case ISA::IPR_DC_PERR_STAT:
- case ISA::IPR_PMCTR:
- // write entire quad w/ no side-effect
- ipr[idx] = val;
- break;
-
- case ISA::IPR_CC_CTL:
- // This IPR resets the cycle counter. We assume this only
- // happens once... let's verify that.
- assert(ipr[idx] == 0);
- ipr[idx] = 1;
- break;
-
- case ISA::IPR_CC:
- // This IPR only writes the upper 64 bits. It's ok to write
- // all 64 here since we mask out the lower 32 in rpcc (see
- // isa_desc).
- ipr[idx] = val;
- break;
-
- case ISA::IPR_PALtemp23:
- // write entire quad w/ no side-effect
- old = ipr[idx];
- ipr[idx] = val;
- break;
-
- case ISA::IPR_DTB_PTE:
- // write entire quad w/ no side-effect, tag is forthcoming
- ipr[idx] = val;
- break;
-
- case ISA::IPR_EXC_ADDR:
- // second least significant bit in PC is always zero
- ipr[idx] = val & ~2;
- break;
-
- case ISA::IPR_ASTRR:
- case ISA::IPR_ASTER:
- // only write least significant four bits - privilege mask
- ipr[idx] = val & 0xf;
- break;
-
- case ISA::IPR_IPLR:
- // only write least significant five bits - interrupt level
- ipr[idx] = val & 0x1f;
- break;
-
- case ISA::IPR_DTB_CM:
-
- case ISA::IPR_ICM:
- // only write two mode bits - processor mode
- ipr[idx] = val & 0x18;
- break;
-
- case ISA::IPR_ALT_MODE:
- // only write two mode bits - processor mode
- ipr[idx] = val & 0x18;
- break;
-
- case ISA::IPR_MCSR:
- // more here after optimization...
- ipr[idx] = val;
- break;
-
- case ISA::IPR_SIRR:
- // only write software interrupt mask
- ipr[idx] = val & 0x7fff0;
- break;
-
- case ISA::IPR_ICSR:
- ipr[idx] = val & ULL(0xffffff0300);
- break;
-
- case ISA::IPR_IVPTBR:
- case ISA::IPR_MVPTBR:
- ipr[idx] = val & ULL(0xffffffffc0000000);
- break;
-
- case ISA::IPR_DC_TEST_CTL:
- ipr[idx] = val & 0x1ffb;
- break;
-
- case ISA::IPR_DC_MODE:
- case ISA::IPR_MAF_MODE:
- ipr[idx] = val & 0x3f;
- break;
-
- case ISA::IPR_ITB_ASN:
- ipr[idx] = val & 0x7f0;
- break;
-
- case ISA::IPR_DTB_ASN:
- ipr[idx] = val & ULL(0xfe00000000000000);
- break;
-
- case ISA::IPR_EXC_SUM:
- case ISA::IPR_EXC_MASK:
- // any write to this register clears it
- ipr[idx] = 0;
- break;
-
- case ISA::IPR_INTID:
- case ISA::IPR_SL_RCV:
- case ISA::IPR_MM_STAT:
- case ISA::IPR_ITB_PTE_TEMP:
- case ISA::IPR_DTB_PTE_TEMP:
- // read-only registers
- return Unimplemented_Opcode_Fault;
-
- case ISA::IPR_HWINT_CLR:
- case ISA::IPR_SL_XMIT:
- case ISA::IPR_DC_FLUSH:
- case ISA::IPR_IC_FLUSH:
- // the following are write only
- ipr[idx] = val;
- break;
-
- case ISA::IPR_DTB_IA:
- // really a control write
- ipr[idx] = 0;
-
- cpu->dtb->flushAll();
- break;
-
- case ISA::IPR_DTB_IAP:
- // really a control write
- ipr[idx] = 0;
-
- cpu->dtb->flushProcesses();
- break;
-
- case ISA::IPR_DTB_IS:
- // really a control write
- ipr[idx] = val;
-
- cpu->dtb->flushAddr(val, DTB_ASN_ASN(ipr[ISA::IPR_DTB_ASN]));
- break;
-
- case ISA::IPR_DTB_TAG: {
- struct ISA::PTE pte;
-
- // FIXME: granularity hints NYI...
- if (DTB_PTE_GH(ipr[ISA::IPR_DTB_PTE]) != 0)
- panic("PTE GH field != 0");
-
- // write entire quad
- ipr[idx] = val;
-
- // construct PTE for new entry
- pte.ppn = DTB_PTE_PPN(ipr[ISA::IPR_DTB_PTE]);
- pte.xre = DTB_PTE_XRE(ipr[ISA::IPR_DTB_PTE]);
- pte.xwe = DTB_PTE_XWE(ipr[ISA::IPR_DTB_PTE]);
- pte.fonr = DTB_PTE_FONR(ipr[ISA::IPR_DTB_PTE]);
- pte.fonw = DTB_PTE_FONW(ipr[ISA::IPR_DTB_PTE]);
- pte.asma = DTB_PTE_ASMA(ipr[ISA::IPR_DTB_PTE]);
- pte.asn = DTB_ASN_ASN(ipr[ISA::IPR_DTB_ASN]);
-
- // insert new TAG/PTE value into data TLB
- cpu->dtb->insert(val, pte);
- }
- break;
-
- case ISA::IPR_ITB_PTE: {
- struct ISA::PTE pte;
-
- // FIXME: granularity hints NYI...
- if (ITB_PTE_GH(val) != 0)
- panic("PTE GH field != 0");
-
- // write entire quad
- ipr[idx] = val;
-
- // construct PTE for new entry
- pte.ppn = ITB_PTE_PPN(val);
- pte.xre = ITB_PTE_XRE(val);
- pte.xwe = 0;
- pte.fonr = ITB_PTE_FONR(val);
- pte.fonw = ITB_PTE_FONW(val);
- pte.asma = ITB_PTE_ASMA(val);
- pte.asn = ITB_ASN_ASN(ipr[ISA::IPR_ITB_ASN]);
-
- // insert new TAG/PTE value into data TLB
- cpu->itb->insert(ipr[ISA::IPR_ITB_TAG], pte);
- }
- break;
-
- case ISA::IPR_ITB_IA:
- // really a control write
- ipr[idx] = 0;
-
- cpu->itb->flushAll();
- break;
-
- case ISA::IPR_ITB_IAP:
- // really a control write
- ipr[idx] = 0;
-
- cpu->itb->flushProcesses();
- break;
-
- case ISA::IPR_ITB_IS:
- // really a control write
- ipr[idx] = val;
-
- cpu->itb->flushAddr(val, ITB_ASN_ASN(ipr[ISA::IPR_ITB_ASN]));
- break;
-
- default:
- // invalid IPR
- return Unimplemented_Opcode_Fault;
- }
-
- // no error...
- return No_Fault;
-}
-
-#endif // #ifdef FULL_SYSTEM
-
-#endif // __CPU_BETA_CPU_REGFILE_HH__