Commit graph

317 commits

Author SHA1 Message Date
Kevin Lim
989cc1735e Sampling fixes related to the quiesce event.
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
    Sampling fixes.  The CPU models may switch during a quiesce period, so it needs to be sure to wake up the right XC.
cpu/exec_context.hh:
    Return the EndQuiesceEvent specifically.
sim/pseudo_inst.cc:
    Return the EndQuiesceEvent specifically for sampling.

--HG--
extra : convert_revision : f9aa1fc8d4db8058f05319cb6a3d4605ce93b4c8
2006-05-16 13:51:18 -04:00
Kevin Lim
bfa9cc2c3a Add some flags for the upcoming checker.
arch/alpha/isa/decoder.isa:
    Mark store conditionals as serializing.  This is slightly higher over head than they truly have in the 264, but it's close.  Normally they block any other instructions from entering the IQ until the IQ is empty.  This is higher overhead because it waits until the ROB is empty.

    Also mark RPCC as unverifiable.  The checker will just grab the value from the instruction and assume it's correct.
cpu/static_inst.hh:
    Add unverifiable flag, specifically for the CheckerCPU.

--HG--
extra : convert_revision : cbc34d1f2f5b07105d31d4bd8f19edae2cf8158e
2006-05-16 13:48:05 -04:00
Kevin Lim
21df09cf7a Fixes for ozone CPU to successfully boot and run linux.
cpu/base_dyn_inst.hh:
    Remove snoop function (did not mean to commit it).
cpu/ozone/back_end_impl.hh:
    Set instruction as having its result ready, not completed.
cpu/ozone/cpu.hh:
    Fixes for store conditionals.  Use an additional lock addr list to make sure that the access is valid.  I don't know if this is fully necessary, but it gives me a peace of mind (at some performance cost).
    Make sure to schedule for cycles(1) and not just 1 cycle in the future as tick = 1ps.
    Also support the new Checker.
cpu/ozone/cpu_builder.cc:
    Add parameter for maxOutstandingMemOps so it can be set through the config.
    Also add in the checker.  Right now it's a BaseCPU simobject, but that may change in the future.
cpu/ozone/cpu_impl.hh:
    Add support for the checker.  For now there's a dynamic cast to convert the simobject passed back from the builder to the proper Checker type.  It's ugly, but only happens at startup, and is probably a justified use of dynamic cast.

    Support switching out/taking over from other CPUs.

    Correct indexing problem for float registers.
cpu/ozone/dyn_inst.hh:
    Add ability for instructions to wait on memory instructions in addition to source register instructions.  This is needed for memory dependence predictors and memory barriers.
cpu/ozone/dyn_inst_impl.hh:
    Support waiting on memory operations.
    Use "resultReady" to differentiate an instruction having its registers produced vs being totally completed.
cpu/ozone/front_end.hh:
    Support switching out.
    Also record if an interrupt is pending.
cpu/ozone/front_end_impl.hh:
    Support switching out.  Also support stalling the front end if an interrupt is pending.
cpu/ozone/lw_back_end.hh:
    Add checker in.
    Support switching out.
    Support memory barriers.
cpu/ozone/lw_back_end_impl.hh:
    Lots of changes to get things to work right.
    Faults, traps, interrupts all wait until all stores have written back (important).
    Memory barriers are supported, as is the general ability for instructions to be dependent on other memory instructions.
cpu/ozone/lw_lsq.hh:
    Support switching out.
    Also use store writeback events in all cases, not just dcache misses.
cpu/ozone/lw_lsq_impl.hh:
    Support switching out.
    Also use store writeback events in all cases, not just dcache misses.
    Support the checker CPU.  Marks instructions as completed once the functional access is done (which has to be done for the checker to be able to verify results).
cpu/ozone/simple_params.hh:
    Add max outstanding mem ops parameter.
python/m5/objects/OzoneCPU.py:
    Add max outstanding mem ops, checker.

--HG--
extra : convert_revision : f4d408e1bb1f25836a097b6abe3856111e950c59
2006-05-11 19:18:36 -04:00
Kevin Lim
8a9416ef8d Small fixes to O3 model.
cpu/o3/alpha_dyn_inst.hh:
    Set the instResult using a function on the base dyn inst.
cpu/o3/bpred_unit_impl.hh:
    Don't need to reset the state.
cpu/o3/commit_impl.hh:
    Mark instructions as completed.

    Wait until all stores are written back to handle a fault.
cpu/o3/cpu.cc:
    Clear instruction lists when switching out.
cpu/o3/lsq_unit.hh:
    Allow wbEvent to be set externally.
cpu/o3/lsq_unit_impl.hh:
    Mark instructions as completed properly.  Also use events for writing back stores even if there is a hit in the dcache.

--HG--
extra : convert_revision : 172ad088b75ac31e848a5040633152b5c051444c
2006-05-11 15:39:02 -04:00
Kevin Lim
92838fd35e Set memory properly.
--HG--
extra : convert_revision : 4e6c61d31bf052bb4aabf4bb7a4f0e870b44b771
2006-05-11 15:19:48 -04:00
Kevin Lim
9a96ebf368 Separate out result being ready and the instruction being complete.
--HG--
extra : convert_revision : 9f17af114bf639f8fb61896e49fa714932c081d7
2006-05-11 14:12:34 -04:00
Kevin Lim
f3358e5f7b O3 CPU now handles being used with the sampler.
cpu/o3/2bit_local_pred.cc:
cpu/o3/2bit_local_pred.hh:
cpu/o3/bpred_unit.hh:
cpu/o3/bpred_unit_impl.hh:
cpu/o3/btb.cc:
cpu/o3/btb.hh:
cpu/o3/commit.hh:
cpu/o3/commit_impl.hh:
cpu/o3/cpu.cc:
cpu/o3/cpu.hh:
cpu/o3/decode.hh:
cpu/o3/decode_impl.hh:
cpu/o3/fetch.hh:
cpu/o3/fetch_impl.hh:
cpu/o3/fu_pool.cc:
cpu/o3/fu_pool.hh:
cpu/o3/iew.hh:
cpu/o3/iew_impl.hh:
cpu/o3/inst_queue.hh:
cpu/o3/inst_queue_impl.hh:
cpu/o3/lsq.hh:
cpu/o3/lsq_impl.hh:
cpu/o3/lsq_unit.hh:
cpu/o3/lsq_unit_impl.hh:
cpu/o3/mem_dep_unit.hh:
cpu/o3/mem_dep_unit_impl.hh:
cpu/o3/ras.cc:
cpu/o3/ras.hh:
cpu/o3/rename.hh:
cpu/o3/rename_impl.hh:
cpu/o3/rob.hh:
cpu/o3/rob_impl.hh:
cpu/o3/sat_counter.cc:
cpu/o3/sat_counter.hh:
cpu/o3/thread_state.hh:
    Handle switching out and taking over.  Needs to be able to reset all state.
cpu/o3/alpha_cpu_impl.hh:
    Handle taking over from another XC.

--HG--
extra : convert_revision : b936e826f0f8a18319bfa940ff35097b4192b449
2006-05-04 11:36:20 -04:00
Kevin Lim
4601230d35 Fixes for the sampler.
cpu/simple/cpu.cc:
    Sampler fixes.  The status may be switched out when calling activate or suspend if there is a switchover during a quiesce.

--HG--
extra : convert_revision : da026e75dfb86289484cf01c5b1ecd9b03a72bd3
2006-05-03 15:54:36 -04:00
Kevin Lim
32a5294983 XC needs to get memory from the process.
--HG--
extra : convert_revision : a2c014276824255a896a7e353f919fe81071091e
2006-05-03 15:51:53 -04:00
Kevin Lim
d363d5aad7 Quiesce stuff.
cpu/ozone/cpu.hh:
    Add quiesce stat (not clear how it should be used yet).
cpu/ozone/cpu_impl.hh:
    Fix for quiesce.

--HG--
extra : convert_revision : a1998818e241374ae3f4c3cabbef885dda55c884
2006-04-24 17:40:00 -04:00
Kevin Lim
31e09892d7 Include option for disabling PC symbols.
cpu/inst_seq.hh:
cpu/o3/cpu.cc:
cpu/ozone/cpu_builder.cc:
cpu/ozone/thread_state.hh:
    SE build fixes.

--HG--
extra : convert_revision : a4df6128533105f849b5469f62d83dffe299b7df
2006-04-24 17:11:31 -04:00
Kevin Lim
e704960c80 Updates to Ozone model for quiesce, store conditionals.
--HG--
extra : convert_revision : 72ddd75ad0b5783aca9484e7d178c2915ee8e355
2006-04-24 17:10:06 -04:00
Kevin Lim
676afbe2c7 New stats added to O3 model.
--HG--
extra : convert_revision : 7abb491e89e3e1a331cd19aa05ddce5184abf9e0
2006-04-24 17:06:00 -04:00
Kevin Lim
b14bf03219 Fixes for ll/sc for the O3 model.
cpu/o3/alpha_cpu.hh:
    Store conditionals should not write their data to memory if they failed.
cpu/o3/lsq_unit.hh:
    Setup request parameters when they're needed.

--HG--
extra : convert_revision : d75cd7deda03584b7e25cb567e4d79032cac7118
2006-04-24 16:59:50 -04:00
Kevin Lim
b363a3703d Allow the switching on and off of PC symbols for tracing.
--HG--
extra : convert_revision : a2422e30ace9874ba1be44cd0e1d3024cabbf1ed
2006-04-24 16:56:24 -04:00
Kevin Lim
7bab47ac3a Include new OzoneCPU files
--HG--
extra : convert_revision : f8c8751aab62df5d57c6491c5ce9b90b5a176e86
2006-04-22 19:17:05 -04:00
Kevin Lim
6b4396111b Updates for OzoneCPU.
cpu/static_inst.hh:
    Updates for new CPU, also include a classification of quiesce instructions.

--HG--
extra : convert_revision : a34cd56da88fe57d7de24674fbb375bbf13f887f
2006-04-22 19:10:39 -04:00
Kevin Lim
bfc507e44e Remove unnecessary functions.
cpu/exec_context.hh:
    Remove functions that shouldn't be accessible to anything outside of the CPU.

--HG--
extra : convert_revision : 9793c3ceb6d5404484bafc7a75d75ed71815d9eb
2006-04-22 18:49:52 -04:00
Kevin Lim
759ff4b910 Updates for OzoneCPU.
build/SConstruct:
    Include Ozone CPU models.
cpu/cpu_models.py:
    Include OzoneCPU models.

--HG--
extra : convert_revision : 51a016c216cacd2cc613eed79653026c2edda4b3
2006-04-22 18:45:01 -04:00
Kevin Lim
a8b03e4d01 Updates for O3 model.
arch/alpha/isa/decoder.isa:
    Make IPR accessing instructions serializing so they are not issued incorrectly in the O3 model.
arch/alpha/isa/pal.isa:
    Allow IPR instructions to have flags.
base/traceflags.py:
    Include new trace flags from the two new CPU models.
cpu/SConscript:
    Create the templates for the split mem accessor methods.  Also include the new files from the new models (the Ozone model will be checked in next).
cpu/base_dyn_inst.cc:
cpu/base_dyn_inst.hh:
    Update to the BaseDynInst for the new models.

--HG--
extra : convert_revision : cc82db9c72ec3e29cea4c3fdff74a3843e287a35
2006-04-22 18:26:48 -04:00
Kevin Lim
de8baeb58a Move quiesce event to its own class.
SConscript:
    Move quiesce event to its own file/class.

--HG--
extra : convert_revision : 6aa7863adb529fc03142666213c3ec348825bd3b
2006-04-22 18:11:54 -04:00
Ali Saidi
56cc760f6f Merge zizzer:/bk/multiarch
into  zeep.eecs.umich.edu:/z/saidi/work/m5.ma2

arch/alpha/isa_traits.hh:
arch/alpha/linux/process.cc:
arch/sparc/isa_traits.hh:
arch/sparc/linux/process.cc:
sim/process.cc:
    merge

--HG--
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : fea0155c8e23abbd0d5d5251abbd0f4d223fe935
2006-03-09 15:56:42 -05:00
Ali Saidi
ce3a6343b6 no more common syscall emulation, now common for everyone
check abi-tag note section of elf binary for OS
add pseudo functions (moved from alpha and made to be generic)
move setsyscallreturn into isa traits

arch/alpha/SConscript:
    no more common syscall emulation, now common for everyone
arch/alpha/isa_traits.hh:
    move setsyscallreturn into isa description
arch/alpha/linux/process.cc:
arch/alpha/tru64/process.cc:
    use generic functions rather than alpha specific ones
arch/sparc/isa_traits.hh:
    have consts for generic pseudo syscalls
arch/sparc/linux/process.cc:
    use generic functions
base/loader/elf_object.cc:
    check abi-tag note section of elf binary for OS
cpu/exec_context.hh:
    move syssyscallreturn into isa traits
sim/process.cc:
    find call num with a more generic
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    add pseudo functions (moved from alpha and made to be generic)

--HG--
extra : convert_revision : 5a31024ecde7e39b830365ddd84593ea501a34d2
2006-03-09 15:42:09 -05:00
Gabe Black
91545ac2bf Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/m5
into  zizzer.eecs.umich.edu:/z/m5/Bitkeeper/multiarch

cpu/simple/cpu.cc:
    Hand Merge

--HG--
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : bf664b092f993d0f4675ce8e7df13645a920c1f4
2006-03-09 15:15:55 -05:00
Kevin Lim
e30bce8f8e Use functions to access XC.
cpu/exec_context.hh:
    Include readNextNPC function.
cpu/simple/cpu.cc:
    Use functions to set and access nextPC, nextNPC.

--HG--
extra : convert_revision : 22622b9c110e1d99cc9106a2a27c479579d7e1ad
2006-03-09 15:10:55 -05:00
Korey Sewell
a3aae21d03 last changes before big merge
arch/alpha/isa_traits.hh:
arch/sparc/isa_traits.hh:
    add nnpc for compiling purposes in exec_context setNextNPC function
cpu/exec_context.hh:
    set NNPC function
cpu/simple/cpu.cc:
    use NNPC in determining what PC we are using

--HG--
extra : convert_revision : e810cfbc5dc31879b20d2cc40bf9871613203532
2006-03-09 03:27:51 -05:00
Kevin Lim
77e40756b7 Include ability to copy all misc regs.
arch/alpha/ev5.cc:
    Include function for the MiscRegFile to copy all of the Iprs from an ExecContext.
arch/alpha/isa_traits.hh:
    Include functions to copy MiscRegs from an ExecContext.
cpu/cpu_exec_context.cc:
    Be sure to copy all of the misc regs when copying all architectural state.

--HG--
extra : convert_revision : cb948b5ff141ea0f739a1016f98236bd2a512f76
2006-03-08 15:10:47 -05:00
Kevin Lim
67732a7b28 Merge ktlim@zizzer:/bk/m5
into  zamp.eecs.umich.edu:/z/ktlim2/m5-proxyxc

arch/alpha/ev5.cc:
cpu/o3/cpu.hh:
    SCCS merged

--HG--
extra : convert_revision : 38889011ea02005c8fd3a7f3b0be3395223f6166
2006-03-08 13:26:30 -05:00
Kevin Lim
556d069e77 Fixes for accesses to the misc regs.
--HG--
extra : convert_revision : 47c7d90be5a147cb644f11980adcf8165b0ab3bb
2006-03-07 22:24:37 -05:00
Kevin Lim
7712232e55 Fixes to allow the ExecContext to be used for profiling.
cpu/base.cc:
    Change to be calls through the ExecContext instead of accessing the profile object directly.
cpu/cpu_exec_context.cc:
    Add functions to clear and sample the profile object.
cpu/cpu_exec_context.hh:
    Add functions to clear and sample the profile object.  These are not the most flexible functions; it might be better to eventually move the quiesce, profile, and store conditional stuff out of ExecContext so they don't clutter the interface.
cpu/exec_context.hh:
    Include functions to support using the profile object to clear itself and take samples.

--HG--
extra : convert_revision : 40849915fd51303673451515debb9ecdc7afb8c8
2006-03-07 22:21:39 -05:00
Kevin Lim
11aead894d Updates for the quiesceEvent that was added to the XC.
Also several files need to include system.hh or symtab.hh.  This is because exec_context.hh has less #includes than before, requiring some of the files that include it to include some other files as well.

arch/alpha/faults.cc:
    Avoid accessing XC directly.
arch/alpha/stacktrace.cc:
    StackTrace needs to include system.hh.
cpu/cpu_exec_context.cc:
    Update for change to CPUExecContext.
cpu/cpu_exec_context.hh:
    Make quiesce events use CPUExecContext instead of ExecContext.  Include functions to allow the quiesce event and last activate/suspend be accessed.
cpu/exec_context.hh:
    Include functions for quiesceEvent.
cpu/intr_control.cc:
    Needs to include cpu/exec_context.hh.
cpu/profile.cc:
    Needs to include symtab.hh for the symbol table.
cpu/profile.hh:
    Needs forward declare of ExecContext.
cpu/simple/cpu.cc:
    Rename xc to cpuXC.
dev/tsunami_cchip.cc:
    Needs to include exec_context.hh.
kern/kernel_stats.cc:
    Needs to include system.hh.
kern/linux/events.cc:
    Needs to include system.hh.

    Also avoid accessing objects directly from the XC.
kern/tru64/dump_mbuf.cc:
    Include symtab.hh for the SymbolTable and system.hh.
kern/tru64/tru64_events.cc:
    Include system.hh
sim/pseudo_inst.cc:
    Avoid accessing objects directly within the XC.

--HG--
extra : convert_revision : 78fe30d98cd20f7403fa216f772071458b675c84
2006-03-07 19:59:12 -05:00
Gabe Black
8106a80450 Pushed ev5.hh out of the non-alpha code.
arch/SConscript:
    ev5 should now be contained within alpha specific code.
arch/alpha/ev5.cc:
arch/alpha/isa_traits.hh:
    Added getInstAsid and getDataAsid functions. These should be removed when the SimpleScalar cpu model is removed.
arch/sparc/isa_traits.hh:
    Added getInstAsid and getDataAsid functions. These should be removed when the SimpleScalar cpu model is removed. Also made some small fixes.
cpu/o3/alpha_cpu.hh:
    Added typedefs which are required now that there isn't a using namespace EV5.
cpu/o3/alpha_cpu_impl.hh:
    Some small changes so that ev5.hh isn't needed directly.
cpu/o3/cpu.hh:
    Removed including ev5.hh, and pushed retrieving the Asid into the MiscRegFile.
cpu/o3/regfile.hh:
    Removed the include of ev5.hh, using namespace EV5, and the now redundant ipr array.

--HG--
extra : convert_revision : 5ef8f69435a3a888a3f06d0095d89326dafb33fd
2006-03-07 14:08:01 -05:00
Kevin Lim
20eced3ea0 Merge ktlim@zizzer:/bk/m5
into  zamp.eecs.umich.edu:/z/ktlim2/m5-proxyxc

Further changes still need to be made to the XC code.

arch/alpha/ev5.cc:
arch/alpha/freebsd/system.cc:
arch/alpha/linux/system.cc:
base/remote_gdb.cc:
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/simple/cpu.cc:
cpu/simple/cpu.hh:
kern/kernel_stats.cc:
sim/pseudo_inst.cc:
    Hand merge.

--HG--
rename : kern/freebsd/freebsd_system.cc => arch/alpha/freebsd/system.cc
rename : kern/linux/linux_system.cc => arch/alpha/linux/system.cc
rename : kern/linux/linux_threadinfo.hh => arch/alpha/linux/threadinfo.hh
rename : arch/alpha/alpha_linux_process.cc => arch/alpha/linux_process.cc
rename : arch/alpha/alpha_memory.cc => arch/alpha/tlb.cc
rename : arch/alpha/alpha_tru64_process.cc => arch/alpha/tru64_process.cc
rename : cpu/exec_context.cc => cpu/cpu_exec_context.cc
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : c1fe71fdd87d1fcd376f4feec69fc3fa29152e3e
2006-03-05 00:34:54 -05:00
Kevin Lim
f15e492375 Steps towards setting up the infrastructure to allow the new CPU model to work in full system mode.
The major change is renaming the old ExecContext to CPUExecContext, and creating two new classes, ExecContext (an abstract class), and ProxyExecContext (a templated class that derives from ExecContext).

Code outside of the CPU continues to use ExecContext as normal (other than not being able to access variables within the XC).  The CPU uses the CPUExecContext, or however else it stores its own state.  It then creates a ProxyExecContext, templated on the class used to hold its state.  This proxy is passed to any code outside of the CPU that needs to access the XC.  This allows code outside of the CPU to use the ExecContext interface to access any state needed, without knowledge of how that state is laid out.

Note that these changes will not compile without the accompanying revision to automatically rename the shadow registers.

SConscript:
    Include new file, cpu_exec_context.cc.
arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_memory.cc:
arch/alpha/alpha_tru64_process.cc:
arch/alpha/arguments.cc:
arch/alpha/isa/decoder.isa:
arch/alpha/stacktrace.cc:
arch/alpha/vtophys.cc:
base/remote_gdb.cc:
cpu/intr_control.cc:
    Avoid directly accessing objects within the XC.
arch/alpha/ev5.cc:
    Avoid directly accessing objects within the XC.

    KernelStats have been moved to the BaseCPU instead of the XC.
arch/alpha/isa_traits.hh:
    Remove clearIprs().  It wasn't used very often and it did not work well with the proxy ExecContext.
cpu/base.cc:
    Place kernel stats within the BaseCPU instead of the ExecContext.

    For now comment out the profiling code sampling until its exact location is decided upon.
cpu/base.hh:
    Kernel stats are now in the BaseCPU instead of the ExecContext.
cpu/base_dyn_inst.cc:
cpu/base_dyn_inst.hh:
cpu/memtest/memtest.cc:
cpu/memtest/memtest.hh:
    Changes to support rename of old ExecContext to CPUExecContext.  See changeset for more details.
cpu/exetrace.cc:
    Remove unneeded include of exec_context.hh.
cpu/intr_control.hh:
cpu/o3/alpha_cpu_builder.cc:
    Remove unneeded include of exec_context.hh
cpu/o3/alpha_cpu.hh:
cpu/o3/alpha_cpu_impl.hh:
cpu/o3/cpu.cc:
cpu/o3/cpu.hh:
cpu/simple/cpu.cc:
cpu/simple/cpu.hh:
    Changes to support rename of old ExecContext to CPUExecContext.  See changeset for more details.

    Also avoid accessing anything directly from the XC.
cpu/pc_event.cc:
    Avoid accessing objects directly from the XC.
dev/tsunami_cchip.cc:
    Avoid accessing objects directly within the XC>
kern/freebsd/freebsd_system.cc:
kern/linux/linux_system.cc:
kern/linux/linux_threadinfo.hh:
kern/tru64/dump_mbuf.cc:
kern/tru64/tru64.hh:
kern/tru64/tru64_events.cc:
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    Avoid accessing objects directly within the XC.
kern/kernel_stats.cc:
kern/kernel_stats.hh:
    Kernel stats no longer exist within the XC.
kern/system_events.cc:
    Avoid accessing objects directly within the XC.  Also kernel stats are now in the BaseCPU.
sim/process.cc:
sim/process.hh:
    Avoid accessing regs directly within an ExecContext.  Instead use a CPUExecContext to initialize the registers and copy them over.
cpu/cpu_exec_context.cc:
    Rename old ExecContext to CPUExecContext.  This is used by the old CPU models to store any necessary architectural state.  Also include the ProxyExecContext, which is used to access the CPUExecContext's state in code outside of the CPU.
cpu/cpu_exec_context.hh:
    Rename old ExecContext to CPUExecContext.  This is used by the old CPU models to store any necessary architectural state.  Also include the ProxyExecContext, which is used to access the CPUExecContext's state in code outside of the CPU.

    Remove kernel stats from the ExecContext.
sim/pseudo_inst.cc:
    Kernel stats now live within the CPU.

    Avoid accessing objects directly within the XC.

--HG--
rename : cpu/exec_context.cc => cpu/cpu_exec_context.cc
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : a75393a8945c80cca225b5e9d9c22a16609efb85
2006-03-04 15:18:40 -05:00
Kevin Lim
5790e295a9 Merge ktlim@zizzer:/bk/m5
into  zamp.eecs.umich.edu:/z/ktlim2/m5-shadowregs

arch/alpha/ev5.cc:
    Remove intr_post, it is no longer used.
arch/alpha/isa_traits.hh:
    Hand merge.

--HG--
extra : convert_revision : 94f14539a9e5646f8c368b15b2dff18ab2f492cf
2006-03-04 13:06:24 -05:00
Kevin Lim
fc664f7ca6 Merge ktlim@zizzer:/bk/m5
into  zamp.eecs.umich.edu:/z/ktlim2/m5-shadowregs

--HG--
extra : convert_revision : 979ab1fc4e1ea4d6a78ac9a2ec894f0be4feb01d
2006-03-03 16:04:34 -05:00
Kevin Lim
e7825aab59 Changes to support automatic renaming of the shadow registers at decode time. This requires using an ExtMachInst (uint64_t) instead of the normal MachInst; the ExtMachInst is packed with extra decode context information. In the case of Alpha, the PAL mode is included.
The shadow registers are folded into the normal integer registers to ease renaming indexing.

Include the removed Opcdec class of instructions for faulting when a pal mode only instruction is decoded in non-pal mode.

arch/alpha/ev5.cc:
    Changes to automatically map the shadow registers if the instruction is in PAL mode.
arch/alpha/isa/branch.isa:
arch/alpha/isa/decoder.isa:
arch/alpha/isa/fp.isa:
arch/alpha/isa/int.isa:
arch/alpha/isa/mem.isa:
arch/alpha/isa/pal.isa:
arch/alpha/isa/unimp.isa:
    Changes for automatically using the shadow registers.  Now instructions must decode based on an ExtMachInst, which is a MachInst with any decode context information concatenated onto the higher order bits.
arch/alpha/isa/main.isa:
    Changes for automatically using the shadow registers.  Now instructions must decode based on an ExtMachInst, which is a MachInst with any decode context information concatenated onto the higher order bits.

    The decoder (for Alpha) uses the 32nd bit in order to determine if the machine is in PAL mode.  If it is, then it refers to the reg_redir table to determine the true index of the register it is using.

    Also include the opcdec instruction definition.
arch/alpha/isa_traits.hh:
    Define ExtMachInst type that is used by the static inst in order to decode the instruction, given the context of being in pal mode or not.

    Redefine the number of Int registers, splitting it into NumIntArchRegs (32) and NumIntRegs (32 + 8 shadow registers).

    Change the dependence tags to reflect the integer registers include the 8 shadow registers.

    Define function to make an ExtMachInst.  Currently it is somewhat specific to Alpha; in the future it must be decided to make this more generic and possibly slower, or leave it specific to each architecture and ifdef it within the CPU.
arch/isa_parser.py:
    Have static insts decode on the ExtMachInst.
base/remote_gdb.cc:
    Support the automatic remapping of shadow registers.  Remote GDB must now look at the PC being read in order to tell if it should use the normal register indices or the shadow register indices.
cpu/o3/regfile.hh:
    Comment out the pal registers; they are now a part of the integer registers.
cpu/simple/cpu.cc:
    Create an ExtMachInst to decode on, based on the normal MachInst and the PC of the instructoin.
cpu/static_inst.hh:
    Change from MachInst to ExtMachInst to support shadow register renaming.

--HG--
extra : convert_revision : 1d23eabf735e297068e1917445a6348e9f8c88d5
2006-03-03 15:28:25 -05:00
Gabe Black
dd0d8e6287 Merge gblack@m5.eecs.umich.edu:/bk/multiarch
into  ewok.(none):/home/gblack/m5/multiarch

--HG--
extra : convert_revision : f6db244a66431dd6b8c5ba251ed02d76cd509cff
2006-03-02 21:44:43 -05:00
Ali Saidi
0fed64a6a4 Fix fault handling, dereferincing a null pointer is bad.
--HG--
extra : convert_revision : a4f658bfd39b7f1d219ad8929b8f45457f49299f
2006-03-02 17:49:12 -05:00
Ali Saidi
1624d9e545 Merge zizzer:/bk/m5
into  zeep.eecs.umich.edu:/z/saidi/work/m5.q

--HG--
extra : convert_revision : 4855ecfb3de652456a8be413c9e538c91709dcb6
2006-03-01 12:43:04 -05:00
Gabe Black
2eff368dd0 Cleaned up some of the Fault system.
arch/alpha/ev5.cc:
    Commented out the intr_post function since it's not used. If this really -is- needed, it should be moved into the fault class.
arch/alpha/faults.cc:
arch/alpha/faults.hh:
    Moved the fault invocation code into the fault class fully, and got rid of the need for isA.
cpu/exec_context.cc:
cpu/exec_context.hh:
    Removed the trap function from the ExecContext. The faults will execute normally in full system mode, but always panic in syscall emulation mode.
cpu/ozone/cpu.hh:
cpu/simple/cpu.hh:
    Changed the execution context executing a fault to a fault executing on the execution context.
sim/faults.cc:
    If not in full system mode, trying to invoke a fault causes a panic.
sim/faults.hh:
    Removed the isA function.

--HG--
extra : convert_revision : 894dc8f0755c8efc4b7ef5a09fb2cf7373042395
2006-03-01 05:26:08 -05:00
Gabe Black
e08cf8fee0 Changed the name of the fault's invocation method from ev5_trap to invoke.
--HG--
extra : convert_revision : b7ab14ac644f6a38c69aaa5372b3002b21f34af0
2006-03-01 01:23:10 -05:00
Gabe Black
d6c0657116 Used the Fault constructor to create Interrupt faults. Using the pointer directly prevents reference counting from working correctly.
cpu/simple/cpu.cc:
    Used the Fault constructor to create an Interrupt fault.

--HG--
extra : convert_revision : ec2ef7e3cd04ee9a44628877dc6e770fb907104b
2006-03-01 00:14:09 -05:00
Gabe Black
69e91d7617 moved ev5_trap fully into the fault class.
--HG--
extra : convert_revision : 182cdec9a4e05f55edff0c6a114844b9ad2ca8db
2006-03-01 00:09:08 -05:00
Ali Saidi
26d7b5a4d1 Add quiesceNs, quiesceTime, quiesceCycles, and m5panic pseudo ops.
This changeset removes a check that prevents quiescing when an
interrupt is pending. *** You should only call quiesce if that
isn't a problem. ***

arch/alpha/isa/decoder.isa:
sim/pseudo_inst.cc:
sim/pseudo_inst.hh:
    Add quiesceNs, quiesceCycles, quisceTime and m5panic pseudo ops.
    These quiesce for a number of ns, cycles, report how long
    we were quiesced for, and panic the simulator respectively.
    The latter is added to the panic() function in the console and linux
    kernel instead of executing an infinite loop until someone notices.
cpu/exec_context.cc:
cpu/exec_context.hh:
    Add a quiesce end event to the execution contexted which upon
    executing wakes up a CPU for quiesceCycles/quiesceNs.
util/m5/Makefile:
    Make the makefile more reasonable
util/m5/m5.c:
    update the m5op executable to use the files from the linux tree
util/m5/m5op.S:
    update m5op.S from linux tree
util/m5/m5op.h:
    update m5op.h from linux tree

--HG--
rename : util/m5/m5op.s => util/m5/m5op.S
extra : convert_revision : 3be18525e811405b112e33f24a8c4e772d15462d
2006-02-28 18:41:04 -05:00
Kevin Lim
34da58a698 Merge ktlim@zizzer:/bk/m5
into  zamp.eecs.umich.edu:/z/ktlim2/clean/m5-clean

arch/alpha/ev5.cc:
cpu/o3/regfile.hh:
    Hand merge.

--HG--
rename : arch/alpha/alpha_memory.cc => arch/alpha/tlb.cc
extra : convert_revision : c941dd2198851398820b38a66471372ed8454891
2006-02-28 15:16:24 -05:00
Gabe Black
f7360d5bca Merge gblack@m5.eecs.umich.edu:/bk/multiarch
into  ewok.(none):/home/gblack/m5/multiarch

--HG--
extra : convert_revision : 0b3ffc0605c9043d7f5bf6c15f4a3c68846a732a
2006-02-28 06:13:35 -05:00
Gabe Black
d207168eda Merge zizzer.eecs.umich.edu:/z/m5/Bitkeeper/m5
into  zizzer.eecs.umich.edu:/z/m5/Bitkeeper/multiarch

--HG--
extra : convert_revision : 3a3ff8fcf472db385219a00ae434d1f3fea43b18
2006-02-28 06:03:57 -05:00
Gabe Black
299efffaf5 Cleaned up and slightly reorganized the Fault class heirarchy.
arch/alpha/ev5.cc:
    Changed c style casts of Faults to dynamic_casts
arch/alpha/faults.cc:
    AlphaFault is now an abstract class.
arch/alpha/faults.hh:
    AlphaFault is now an abstract class. Also, AlphaMachineCheckFault and AlphaAlignmentFault multiply inherit from both AlphaFault and from MachineCheckFault and AlignmentFault respectively. These classes get their name from the generic classes.
cpu/o3/alpha_cpu_impl.hh:
    Changed a c style cast to a dynamic_cast for a Fault
sim/faults.hh:
    All generic Fault classes are now abstract. Also, MachineCheckFault and AlignmentFault inherit FaultBase as a virtual base class to help resolve ambiguities when they are multiply inherited in ISA specific classes. The override the isMachineCheckFault and isAlignmentFault functions appropriately, and provide a standard name for these faults.

--HG--
extra : convert_revision : 2cb906708e3eaec4a12587484c09e50ed6ef88fc
2006-02-28 06:02:18 -05:00
Gabe Black
6165419d35 Changed ev5_trap from a function of the execution context to a function of the fault. The actual function still resides in the execution context.
--HG--
extra : convert_revision : 56e33536cdd9079ace03896b85ea3c84b6eb4e57
2006-02-27 23:26:13 -05:00