From 00da08902918da13fccc3f2266b7b2f5d0080708 Mon Sep 17 00:00:00 2001 From: Rekai Gonzalez-Alberquilla Date: Wed, 5 Apr 2017 13:24:00 -0500 Subject: cpu: Added interface for vector reg file This patch adds some more functionality to the cpu model and the arch to interface with the vector register file. This change consists mainly of augmenting ThreadContexts and ExecContexts with calls to get/set full vectors, underlying microarchitectural elements or lanes. Those are meant to interface with the vector register file. All classes that implement this interface also get an appropriate implementation. This requires implementing the vector register file for the different models using the VecRegContainer class. This change set also updates the Result abstraction to contemplate the possibility of having a vector as result. The changes also affect how the remote_gdb connection works. There are some (nasty) side effects, such as the need to define dummy numPhysVecRegs parameter values for architectures that do not implement vector extensions. Nathanael Premillieu's work with an increasing number of fixes and improvements of mine. Change-Id: Iee65f4e8b03abfe1e94e6940a51b68d0977fd5bb Reviewed-by: Andreas Sandberg [ Fix RISCV build issues and CC reg free list initialisation ] Signed-off-by: Andreas Sandberg Reviewed-on: https://gem5-review.googlesource.com/2705 --- src/cpu/o3/inst_queue_impl.hh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'src/cpu/o3/inst_queue_impl.hh') diff --git a/src/cpu/o3/inst_queue_impl.hh b/src/cpu/o3/inst_queue_impl.hh index f52cf2d6c..2b113ae04 100644 --- a/src/cpu/o3/inst_queue_impl.hh +++ b/src/cpu/o3/inst_queue_impl.hh @@ -98,8 +98,11 @@ InstructionQueue::InstructionQueue(O3CPU *cpu_ptr, IEW *iew_ptr, numThreads = params->numThreads; // Set the number of total physical registers + // As the vector registers have two addressing modes, they are added twice numPhysRegs = params->numPhysIntRegs + params->numPhysFloatRegs + - params->numPhysCCRegs; + params->numPhysVecRegs + + params->numPhysVecRegs * TheISA::NumVecElemPerVecReg + + params->numPhysCCRegs; //Create an entry for each physical register within the //dependency graph. -- cgit v1.2.3