summaryrefslogtreecommitdiff
path: root/src/arch/arm/system.cc
AgeCommit message (Collapse)Author
2014-01-24arm: Add support for ARMv8 (AArch64 & AArch32)ARM gem5 Developers
Note: AArch64 and AArch32 interworking is not supported. If you use an AArch64 kernel you are restricted to AArch64 user-mode binaries. This will be addressed in a later patch. Note: Virtualization is only supported in AArch32 mode. This will also be fixed in a later patch. Contributors: Giacomo Gabrielli (TrustZone, LPAE, system-level AArch64, AArch64 NEON, validation) Thomas Grocutt (AArch32 Virtualization, AArch64 FP, validation) Mbou Eyole (AArch64 NEON, validation) Ali Saidi (AArch64 Linux support, code integration, validation) Edmund Grimley-Evans (AArch64 FP) William Wang (AArch64 Linux support) Rene De Jong (AArch64 Linux support, performance opt.) Matt Horsnell (AArch64 MP, validation) Matt Evans (device models, code integration, validation) Chris Adeniyi-Jones (AArch64 syscall-emulation) Prakash Ramrakhyani (validation) Dam Sunwoo (validation) Chander Sudanthi (validation) Stephan Diestelhorst (validation) Andreas Hansson (code integration, performance opt.) Eric Van Hensbergen (performance opt.) Gabe Black
2013-01-07arm: Make ID registers ISA parametersAndreas Sandberg
This patch makes the values of ID_ISARx, MIDR, and FPSID configurable as ISA parameter values. Additionally, setMiscReg now ignores writes to all of the ID registers. Note: This moves the MIDR parameter from ArmSystem to ArmISA for consistency.
2012-06-05ARM: Fix MPIDR and MIDR register implementation.Chander Sudanthi
This change allows designating a system as MP capable or not as some bootloaders/kernels care that it's set right. You can have a single processor MP capable system, but you can't have a multi-processor UP only system. This change also fixes the initialization of the MIDR register.
2012-04-06MEM: Enable multiple distributed generalized memoriesAndreas Hansson
This patch removes the assumption on having on single instance of PhysicalMemory, and enables a distributed memory where the individual memories in the system are each responsible for a single contiguous address range. All memories inherit from an AbstractMemory that encompasses the basic behaviuor of a random access memory, and provides untimed access methods. What was previously called PhysicalMemory is now SimpleMemory, and a subclass of AbstractMemory. All future types of memory controllers should inherit from AbstractMemory. To enable e.g. the atomic CPU and RubyPort to access the now distributed memory, the system has a wrapper class, called PhysicalMemory that is aware of all the memories in the system and their associated address ranges. This class thus acts as an infinitely-fast bus and performs address decoding for these "shortcut" accesses. Each memory can specify that it should not be part of the global address map (used e.g. by the functional memories by some testers). Moreover, each memory can be configured to be reported to the OS configuration table, useful for populating ATAG structures, and any potential ACPI tables. Checkpointing support currently assumes that all memories have the same size and organisation when creating and resuming from the checkpoint. A future patch will enable a more flexible re-organisation. --HG-- rename : src/mem/PhysicalMemory.py => src/mem/AbstractMemory.py rename : src/mem/PhysicalMemory.py => src/mem/SimpleMemory.py rename : src/mem/physical.cc => src/mem/abstract_mem.cc rename : src/mem/physical.hh => src/mem/abstract_mem.hh rename : src/mem/physical.cc => src/mem/simple_mem.cc rename : src/mem/physical.hh => src/mem/simple_mem.hh
2012-03-09System: Move code in initState() back into constructor whenever possible.Ali Saidi
The change to port proxies recently moved code out of the constructor into initState(). This is needed for code that loads data into memory, however for code that setups symbol tables, kernel based events, etc this is the wrong thing to do as that code is only called when a checkpoint isn't being restored from.
2012-03-01ARM: move kernel func event to correct location.Dam Sunwoo
With the recent series of patches, the symbol table loading moved from "construct" time to "init" time, but the kernel function event callback registration was left behind. This patch moves it to the proper location.
2012-02-24MEM: Make port proxies use references rather than pointersAndreas Hansson
This patch is adding a clearer design intent to all objects that would not be complete without a port proxy by making the proxies members rathen than dynamically allocated. In essence, if NULL would not be a valid value for the proxy, then we avoid using a pointer to make this clear. The same approach is used for the methods using these proxies, such as loadSections, that now use references rather than pointers to better reflect the fact that NULL would not be an acceptable value (in fact the code would break and that is how this patch started out). Overall the concept of "using a reference to express unconditional composition where a NULL pointer is never valid" could be done on a much broader scale throughout the code base, but for now it is only done in the locations affected by the proxies.
2012-01-17MEM: Add port proxies instead of non-structural portsAndreas Hansson
Port proxies are used to replace non-structural ports, and thus enable all ports in the system to correspond to a structural entity. This has the advantage of accessing memory through the normal memory subsystem and thus allowing any constellation of distributed memories, address maps, etc. Most accesses are done through the "system port" that is used for loading binaries, debugging etc. For the entities that belong to the CPU, e.g. threads and thread contexts, they wrap the CPU data port in a port proxy. The following replacements are made: FunctionalPort > PortProxy TranslatingPort > SETranslatingPortProxy VirtualPort > FSTranslatingPortProxy --HG-- rename : src/mem/vport.cc => src/mem/fs_translating_port_proxy.cc rename : src/mem/vport.hh => src/mem/fs_translating_port_proxy.hh rename : src/mem/translating_port.cc => src/mem/se_translating_port_proxy.cc rename : src/mem/translating_port.hh => src/mem/se_translating_port_proxy.hh
2011-05-13ARM: Better RealView/Versatile EB platform support.Chander Sudanthi
Add registers and components to better support the VersatileEB board. Made the MIDR and SYS_ID register parameters to ArmSystem and RealviewCtrl respectively.
2011-05-04ARM: Add support for loading the a bootloader and configuring parameters for itAli Saidi
2011-04-15includes: sort all includesNathan Binkert
2010-11-08sim: Use forward declarations for ports.Ali Saidi
Virtual ports need TLB data which means anything touching a file in the arch directory rebuilds any file that includes system.hh which in everything.
2010-08-25ARM: Limited implementation of dprintk.Ali Saidi
Does not work with vfp arguments or arguments passed on the stack.
2010-08-23ARM: Add system for ARM/Linux and bootstrappingAli 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