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2009-11-17ARM: Begin implementing CP15Ali Saidi
2009-11-17ARM: Differentiate between LDM exception return and LDM user regs.Ali Saidi
2009-11-17ARM: Boilerplate full-system code.Ali Saidi
--HG-- rename : src/arch/sparc/interrupts.hh => src/arch/arm/interrupts.hh rename : src/arch/sparc/kernel_stats.hh => src/arch/arm/kernel_stats.hh rename : src/arch/sparc/stacktrace.cc => src/arch/arm/stacktrace.cc rename : src/arch/sparc/system.cc => src/arch/arm/system.cc rename : src/arch/sparc/system.hh => src/arch/arm/system.hh rename : src/dev/sparc/T1000.py => src/dev/arm/Versatile.py rename : src/dev/sparc/t1000.cc => src/dev/arm/versatile.cc rename : src/dev/sparc/t1000.hh => src/dev/arm/versatile.hh
2009-11-16imported patch isa_fixes2.diffAli Saidi
2009-11-15ARM: Make the exception return form of ldm restore CPSR.Gabe Black
2009-11-15ARM: Create a new type of load uop that restores spsr into cpsr.Gabe Black
2009-11-14ARM: Check in the actual change from the last commit.Gabe Black
The last commit was somehow empty. This was what was supposed to go in it.
2009-11-14ARM: Fix up the implmentation of the msr instruction.Gabe Black
2009-11-14ARM: Define a mask to differentiate purely CPSR bits from CondCodes bits.Gabe Black
2009-11-14ARM: Add a bitfield to indicate if an immediate should be used.Gabe Black
2009-11-14ARM: Write some functions to write to the CPSR and SPSR for instructions.Gabe Black
2009-11-14ARM: Fix up the implmentation of the mrs instruction.Gabe Black
2009-11-14ARM: More accurately describe the effects of using the control operands.Gabe Black
2009-11-14ARM: Hook up the moded versions of the SPSR.Gabe Black
These registers can be accessed directly, or through MISCREG_SPSR which will act as whichever SPSR is appropriate for the current mode.
2009-11-14ARM: Move around decoder to properly decode CP15Ali Saidi
2009-11-11X86: add ULL to 1's being shifted in 64-bit valuesVince Weaver
Some of the micro-ops weren't casting 1 to ULL before shifting, which can cause problems. On the perl makerand input this caused some values to be negative that shouldn't have been. The casts are done as ULL(1) instead of 1ULL to match others in the m5 code base.
2009-11-10ARM: Fix some bugs in the ISA desc and fill out some instructions.Gabe Black
2009-11-10Merge with the head.Gabe Black
2009-11-10Mem: Eliminate the NO_FAULT request flag.Gabe Black
2009-11-10ARM: Implement fault classes.Gabe Black
Implement some fault classes using the curriously recurring template pattern, similar to SPARCs.
2009-11-10ARM: Fix the integer register indexes.Gabe Black
The PC indexes in the various register sets was defined in the section for unaliased registers which was throwing off the indexing. This moves those where they belong. Also, to make detecting accesses to the PC easier and because it's in the same place in all modes, the intRegForceUser function now passes it through as index 15.
2009-11-10X86: Fix bugs in movd implementation.Vince Weaver
Unfortunately my implementation of the movd instruction had two bugs. In one case, when moving a 32-bit value into an xmm register, the lower half of the xmm register was not zero extended. The other case is that xmm was used instead of xmmlm as the source for a register move. My test case didn't notice this at first as it moved xmm0 to eax, which both have the same register number.
2009-11-10X86: Remove double-cast in Cvtf2i micro-opVince Weaver
This double cast led to rounding errors which caused some benchmarks to get the wrong values, most notably lucas which failed spectacularly due to CVTTSD2SI returning an off-by-one value. equake was also broken.
2009-11-08X86: Don't panic on faults on prefetches in SE mode.Gabe Black
2009-11-08X86: Explain what really didn't work with unmapped addresses in SE mode.Gabe Black
2009-11-08X86: Make x86 use PREFETCH instead of PF_EXCLUSIVE.Gabe Black
2009-11-08automergeNathan Binkert
2009-11-08ARM: Support forcing load/store multiple to use user registers.Gabe Black
2009-11-08ARM: Simplify the load/store multiple generation code.Gabe Black
Specifically, get rid of the big switch statement so more cases can be handled. Enumerating all the possible settings doesn't scale well. Also do some minor style clean up.
2009-11-08compile: wrap 64bit numbers with ULL() so 32bit compiles workNathan Binkert
In the isa_parser, we need to check case statements.
2009-11-08ARM: Split the condition codes out of the CPSR.Gabe Black
This allows those bits to be renamed while allowing the other fields to control the behavior of the processor.
2009-11-08ARM: Add in more bits for the mon mode.Gabe Black
2009-11-08ARM: Get rid of NumInternalProcRegs.Gabe Black
That constant is a carry over from Alpha and doesn't do anything in ARM.
2009-11-08ARM: Add back in spots for Rhi and Rlo, and use a named constant for LR.Gabe Black
2009-11-08ARM: Get rid of the Raddr operand.Gabe Black
2009-11-08ARM: Initialize processes in user mode.Gabe Black
I accidentally left in a change to test using int registers in system mode. This change reverts that.
2009-11-08ARM: Implement the shadow registers using register flattening.Gabe Black
2009-11-08ARM: Set up an intregs.hh for ARM.Gabe Black
Add constants for all the modes and registers, maps for aliasing, functions that use the maps and range check, and use a named constant instead of a magic number for the microcode register.
2009-11-07ARM: Get rid of some unneeded register indexes.Gabe Black
2009-11-04X86: Fix problem with movhps instructionVince Weaver
This problem is like the one fixed with movhpd a few weeks ago. A +8 displacement is used to access memory when there should be none. This fix is needed for the perlbmk spec2k benchmark to run.
2009-11-04build: fix compile problems pointed out by gcc 4.4Nathan Binkert
2009-11-04X86: Enable x86_64 vsyscall supportVince Weaver
64-bit vsyscall is different than 32-bit. There are only two syscalls, time and gettimeofday. On a real system, there is complicated code that implements these without entering the kernel. That would be complicated to implement in m5. Instead we just place code that calls the regular syscalls (this is how tools such as valgrind handle this case). This is needed for the perlbmk spec2k benchmark.
2009-11-04X86: Hook up time syscall on X86Vince Weaver
This has been tested and verified that it works.
2009-10-30X86: Add support for x86 psrldq and pslldq instructionsVince Weaver
These are complicated instructions and the micro-code might be suboptimal. This has been tested with some small sample programs (attached) The psrldq instruction is needed by various spec2k programs.
2009-10-30X86: Implement movd_Vo_Edp on X86Vince Weaver
This patch implements the movd_Vo_Edp series of instructions. It addresses various concerns by Gabe Black about which file the instruction belonged in, as well as supporting REX prefixed instructions properly. This instruction is needed for some of the spec2k benchmarks, most notably bzip2.
2009-10-30X86: Implement the X86 sse2 haddpd instructionVince Weaver
This patch implements the haddpd instruction. It fixes the problem in the previous version (pointed out by Gabe Black) where an incorrect result would happen if you issue the instruction with the same argument twice, i.e. "haddpd %xmm0,%xmm0" This instruction is used by many spec2k benchmarks.
2009-10-30X86: Hookup truncate/ftruncate syscalls on X86Vince Weaver
This patch hooks up the truncate, ftruncate, truncate64 and ftruncate64 system calls on 32-bit and 64-bit X86. These have been tested on both architectures. ftruncate/ftruncate64 is needed for the f90 spec2k benchmarks.
2009-10-30Syscalls: Make system calls access arguments like a stack, not an array.Gabe Black
When accessing arguments for a syscall, the position of an argument depends on the policies of the ISA, how much space preceding arguments took up, and the "alignment" of the index for this particular argument into the number of possible storate locations. This change adjusts getSyscallArg to take its index parameter by reference instead of value and to adjust it to point to the possible location of the next argument on the stack, basically just after the current one. This way, the rules for the new argument can be applied locally without knowing about other arguments since those have already been taken into account implicitly. All system calls have also been changed to reflect the new interface. In a number of cases this made the implementation clearer since it encourages arguments to be collected in one place in order and then used as necessary later, as opposed to scattering them throughout the function or using them in place in long expressions. It also discourages using getSyscallArg over and over to retrieve the same value when a temporary would do the job.
2009-10-27X86: Replace "DISPLACEMENT" with disp in movhpd.Gabe Black
2009-10-27Fix problem with the x86 sse movhpd instruction.Vince Weaver
The movhpd instruction was writing to the wrong memory offset.