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
They are now accessed by calling readMiscReg()/setMiscReg() on the XC. Old IPR accesses are supported by using readMiscRegWithEffect() and setMiscRegWithEffect() (names may change in the future).
arch/alpha/alpha_memory.cc:
Change accesses to IPR to go through the XC.
arch/alpha/ev5.cc:
Change accesses for IPRs to go through the misc regs.
arch/alpha/isa/decoder.isa:
Change accesses to IPRs to go through the misc regs. readIpr() and setIpr() are now changed to calls to readMiscRegWithEffect() and setMiscRegWithEffect().
arch/alpha/isa/fp.isa:
Change accesses to IPRs and Fpcr to go through the misc regs.
arch/alpha/isa/main.isa:
Add support for all misc regs being accessed through readMiscReg() and setMiscReg(). Instead of readUniq and readFpcr, they are replaced by calls with Uniq_DepTag and Fpcr_DepTag passed in as the register index.
arch/alpha/isa_traits.hh:
Change the MiscRegFile to a class that handles all accesses to MiscRegs, which in Alpha include the FPCR, Uniq, Lock Addr, Lock Flag, and IPRs.
Two flavors of accesses are supported: normal register reads/writes, and reads/writes with effect. The latter are basically the original read/write IPR functions, while the former are normal reads/writes.
The lock flag and lock addr registers are added to the dependence tags in order to support being accessed through the misc regs.
arch/alpha/stacktrace.cc:
cpu/simple/cpu.cc:
dev/sinic.cc:
Change accesses to the IPRs to go through the XC.
arch/alpha/vtophys.cc:
Change access to the IPR to go through the XC.
arch/isa_parser.py:
Change generation of code for control registers to use the readMiscReg and setMiscReg functions.
base/remote_gdb.cc:
Change accesses to the IPR to go through the XC.
cpu/exec_context.hh:
Use the miscRegs to access the lock addr, lock flag, and other misc registers.
cpu/o3/alpha_cpu.hh:
cpu/simple/cpu.hh:
Support interface for reading and writing misc registers, which replaces readUniq, readFpcr, readIpr, and their set functions.
cpu/o3/alpha_cpu_impl.hh:
Change accesses to the IPRs to go through the miscRegs.
For now comment out some of the accesses to the misc regs until the proxy exec context is completed.
cpu/o3/alpha_dyn_inst.hh:
Change accesses to misc regs to use readMiscReg and setMiscReg.
cpu/o3/alpha_dyn_inst_impl.hh:
Remove old misc reg accessors.
cpu/o3/cpu.cc:
Comment out old misc reg accesses until the proxy exec context is completed.
cpu/o3/cpu.hh:
Change accesses to the misc regs.
cpu/o3/regfile.hh:
Remove old access methods for the misc regs, replace them with readMiscReg and setMiscReg. They are dummy functions for now until the proxy exec context is completed.
kern/kernel_stats.cc:
kern/system_events.cc:
Have accesses to the IPRs go through the XC.
kern/tru64/tru64.hh:
Have accesses to the misc regs use the new access methods.
--HG--
extra : convert_revision : e32e0a3fe99522e17294bbe106ff5591cb1a9d76
SConscript:
The new faults.cc file in sim allocates the system wide faults. When these faults are generated through a function interface in the ISA, this file may go away.
arch/alpha/alpha_memory.cc:
Changed Fault to Fault * and took the underscores out of fault names.
arch/alpha/alpha_memory.hh:
Changed Fault to Fault *. Also, added an include for the alpha faults.
arch/alpha/ev5.cc:
Changed the fault_addr array into a fault_addr function. Once all of the faults can be expected to have the same type, fault_addr can go away completely and the info it provided will come from the fault itself. Also, Fault was changed to Fault *, and underscores were taken out of fault names.
arch/alpha/isa/decoder.isa:
Changed Fault to Fault * and took the underscores out fault names.
arch/alpha/isa/fp.isa:
Changed Fault to Fault *, and took the underscores out of fault names.
arch/alpha/isa/main.isa:
Changed Fault to Fault *, removed underscores from fault names, and made an include of the alpha faults show up in all the generated files.
arch/alpha/isa/mem.isa:
Changed Fault to Fault * and removed underscores from fault names.
arch/alpha/isa/unimp.isa:
arch/alpha/isa/unknown.isa:
cpu/exec_context.hh:
cpu/ozone/cpu.hh:
cpu/simple/cpu.cc:
dev/alpha_console.cc:
dev/ide_ctrl.cc:
dev/isa_fake.cc:
dev/pciconfigall.cc:
dev/pcidev.cc:
dev/pcidev.hh:
dev/tsunami_cchip.cc:
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
Changed Fault to Fault *, and removed underscores from fault names.
arch/alpha/isa_traits.hh:
Changed the include of arch/alpha/faults.hh to sim/faults.hh, since the alpha faults weren't needed.
cpu/base_dyn_inst.cc:
Changed Fault to Fault *, and removed underscores from fault names. This file probably shouldn't use the Unimplemented Opcode fault.
cpu/base_dyn_inst.hh:
Changed Fault to Fault * and took the underscores out of the fault names.
cpu/exec_context.cc:
cpu/o3/alpha_dyn_inst.hh:
cpu/o3/alpha_dyn_inst_impl.hh:
cpu/o3/fetch.hh:
dev/alpha_console.hh:
dev/baddev.hh:
dev/ide_ctrl.hh:
dev/isa_fake.hh:
dev/ns_gige.hh:
dev/pciconfigall.hh:
dev/sinic.hh:
dev/tsunami_cchip.hh:
dev/tsunami_io.hh:
dev/tsunami_pchip.hh:
dev/uart.hh:
dev/uart8250.hh:
Changed Fault to Fault *.
cpu/o3/alpha_cpu.hh:
Changed Fault to Fault *, removed underscores from fault names.
cpu/o3/alpha_cpu_impl.hh:
Changed Fault to Fault *, removed underscores from fault names, and changed the fault_addr array to the fault_addr function. Once all faults are from the ISA, this function will probably go away.
cpu/o3/commit_impl.hh:
cpu/o3/fetch_impl.hh:
dev/baddev.cc:
Changed Fault to Fault *, and removed underscores from the fault names.
cpu/o3/regfile.hh:
Added an include for the alpha specific faults which will hopefully go away once the ipr stuff is moved, changed Fault to Fault *, and removed the underscores from fault names.
cpu/simple/cpu.hh:
Changed Fault to Fault *
dev/ns_gige.cc:
Changed Fault to Fault *, and removdd underscores from fault names.
dev/sinic.cc:
Changed Fault to Fault *, and removed the underscores from fault names.
dev/uart8250.cc:
Chanted Fault to Fault *, and removed underscores from fault names.
kern/kernel_stats.cc:
Removed underscores from fault names, and from NumFaults.
kern/kernel_stats.hh:
Changed the predeclaration of Fault from an enum to a class, and changd the "fault" function to work with the classes instead of the enum. Once there are no system wide faults anymore, this code will simplify back to something like it was originally.
sim/faults.cc:
This allocates the system wide faults.
sim/faults.hh:
This declares the system wide faults.
sim/syscall_emul.cc:
sim/syscall_emul.hh:
Removed the underscores from fault names.
--HG--
rename : arch/alpha/faults.cc => sim/faults.cc
rename : arch/alpha/faults.hh => sim/faults.hh
extra : convert_revision : 253d39258237333ae8ec4d8047367cb3ea68569d
instead of using symlink. The symlink broke scons's built-in include
dependency tacking.
Interestingly once it was fixed scons discovered two circular dependency
problems which are also fixed now.
SConscript:
Make targetarch directory in build tree and copy arch/alpha files to it
instead of using symlink. The symlink broke scons's built-in include
dependency tacking.
arch/alpha/ev5.hh:
Get rid of circular #include dependence.
kern/kernel_stats.cc:
Add needed header file.
kern/linux/linux_syscalls.hh:
kern/tru64/tru64_syscalls.hh:
Replace targetarch/syscalls.hh with single template class declaration.
--HG--
extra : convert_revision : b8551623c1d441c6eb8d0651387e97e373128814
kern/kernel_stats.cc:
Serialize idleProcess.
kern/system_events.cc:
Remove the idle start event once it runs.
--HG--
extra : convert_revision : 05ac574558a88b86ccfce963e4ca9b037a1a8509
arch/alpha/ev5.cc:
set the mode explictly rather than having a bool user/notuser
cpu/simple_cpu/simple_cpu.hh:
there is no class Kernel
kern/kernel_stats.cc:
use cpu_mode_num
kern/kernel_stats.hh:
add interrupt mode and use cpu_mode_num rather than constant
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
kern/system_events.cc:
kern/system_events.hh:
add events to change the mode to/from interrupt
sim/system.cc:
sim/system.hh:
add a pal symbol table
--HG--
extra : convert_revision : 9d30e826b72122062a5ea12d094f94760e75c66a
single place so it's easier to work with.
- Add support for binning kernel/user/idle time separately from
lisa's binning stuff, but make the two compatible.
- KernelStats used to directly implement the pImpl idiom, but
it makes more sense to just remove the level of indirection and
make the exec context have a pointer to the stats.
- Factor common code out of LinuxSystem and Tru64System and put
it into the System base class. While doing that, make all
constructors take a pointer to a parameter struct instead of
naming the parameters individually to make it much easier to add
parameters to these classes.
SConscript:
Move the function tracking and binning stuff around.
arch/alpha/ev5.cc:
kernelStats is now a pointer
arch/alpha/pseudo_inst.cc:
kernelStats is now a pointer
the parameters to the system have been moved into their own
struct
base/trace.hh:
provide a little functor class for wrapping a string that
can allow you to define name() in any scope very simply
for use with DPRINTF
cpu/base_cpu.cc:
New order of arguments for consistency.
cpu/exec_context.cc:
kernelStats no longer has the level of indirection in it,
execContext has the indirection now. so, kernelStats is a pointer.
We also need a pointer to the kernelBinning stuff from the system
and we need to figure out if we want to do binning or not.
Move a whole bunch of code into kern_binning.cc so it's all
in the same place.
cpu/exec_context.hh:
We want pointers to the kernel binning/stats stuff and we'll
have the exec_context and system have the level of indirection
instead of having the extra layer in the kernel stats class.
cpu/simple_cpu/simple_cpu.cc:
call through the exec context to do the special binning
stuff.
kern/kernel_stats.cc:
kern/kernel_stats.hh:
Re-organize the stats stuff and remove the level of indirection
(that was there to simplify building) and move the binning stuff
into its own class/file.
kern/linux/linux_system.cc:
kern/linux/linux_system.hh:
kern/tru64/tru64_system.cc:
kern/tru64/tru64_system.hh:
sim/system.cc:
sim/system.hh:
move lots of common system code into the base system class so
that it can be shared between linux, tru64, and whatever else
we decide to support in the future.
Make the constructor take a pointer to a parameter struct so that
it is easier to pass parameters to the parent.
kern/system_events.cc:
move the majority of the binning code into the Kernel::Binning class
in the kern_binning file
kern/system_events.hh:
FnEvents only need to know the bin
create the Idle start event to find the PCBB of the idle
process when it starts.
kern/tru64/tru64_events.cc:
memCtrl -> memctrl
sim/process.cc:
sim/process.hh:
re-order args for consistency
--HG--
extra : convert_revision : 86cb39738c41fcd680f2aad125c9dde000227b2b
Kevin Lim
Gabe Black
Benjamin Nash
Steve Reinhardt
Erik Hallnor
Ali Saidi
Nathan Binkert
Lisa Hsu