From 51aba755390f96a7f1d997b1849bd47072823dea Mon Sep 17 00:00:00 2001 From: Giacomo Travaglini Date: Fri, 18 Jan 2019 17:14:56 +0000 Subject: arch-arm: Remove SWP and SWPB instructions The SWP and SWPB instructions have been removed from AArch32. It was previously (ARMv7) possible to enable them with the ID_ISAR0.Swap bits, which are now hardcoded to 0b0000 (SWP and SWPB not implemented) Change-Id: Ic32b534454a7e0f7494a6f0b5e11182c65b3fe24 Signed-off-by: Giacomo Travaglini Reviewed-by: Andreas Sandberg Reviewed-on: https://gem5-review.googlesource.com/c/15815 Maintainer: Andreas Sandberg --- src/arch/arm/isa/insts/swap.isa | 96 ----------------------------------------- 1 file changed, 96 deletions(-) delete mode 100644 src/arch/arm/isa/insts/swap.isa (limited to 'src/arch/arm/isa/insts/swap.isa') diff --git a/src/arch/arm/isa/insts/swap.isa b/src/arch/arm/isa/insts/swap.isa deleted file mode 100644 index 4eac18e4c..000000000 --- a/src/arch/arm/isa/insts/swap.isa +++ /dev/null @@ -1,96 +0,0 @@ -// -*- mode:c++ -*- - -// Copyright (c) 2010-2011 ARM Limited -// All rights reserved -// -// The license below extends only to copyright in the software and shall -// not be construed as granting a license to any other intellectual -// property including but not limited to intellectual property relating -// to a hardware implementation of the functionality of the software -// licensed hereunder. You may use the software subject to the license -// terms below provided that you ensure that this notice is replicated -// unmodified and in its entirety in all distributions of the software, -// modified or unmodified, in source code or in binary form. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer; -// redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution; -// neither the name of the copyright holders nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Authors: Gabe Black - -let {{ - - header_output = decoder_output = exec_output = "" - - class SwapInst(LoadStoreInst): - execBase = 'Swap' - decConstBase = 'Swap' - - def __init__(self, name, Name, eaCode, - preAccCode, postAccCode, memFlags, instFlags = []): - super(SwapInst, self).__init__() - self.name = name - self.Name = Name - self.eaCode = eaCode - self.preAccCode = preAccCode - self.postAccCode = postAccCode - self.memFlags = memFlags - self.instFlags = instFlags - - def emit(self): - global header_output, decoder_output, exec_output - codeBlobs = { "ea_code": self.eaCode, - "preacc_code": self.preAccCode, - "postacc_code": self.postAccCode } - codeBlobs["predicate_test"] = pickPredicate(codeBlobs) - (newHeader, - newDecoder, - newExec) = self.fillTemplates(self.name, self.Name, codeBlobs, - self.memFlags, self.instFlags, - base = 'Swap') - header_output += newHeader - decoder_output += newDecoder - exec_output += newExec - - swpPreAccCode = ''' - if (!((SCTLR)Sctlr).sw) { - return std::make_shared(machInst, false, - mnemonic); - } - ''' - - SwapInst('swp', 'Swp', 'EA = Base;', - swpPreAccCode + 'Mem = cSwap(Op1_uw, ((CPSR)Cpsr).e);', - 'Dest = cSwap((uint32_t)memData, ((CPSR)Cpsr).e);', - ['Request::MEM_SWAP', - 'ArmISA::TLB::AlignWord', - 'ArmISA::TLB::MustBeOne'], - ['IsStoreConditional']).emit() - - SwapInst('swpb', 'Swpb', 'EA = Base;', - swpPreAccCode + 'Mem_ub = cSwap(Op1_ub, ((CPSR)Cpsr).e);', - 'Dest_ub = cSwap((uint8_t)memData, ((CPSR)Cpsr).e);', - ['Request::MEM_SWAP', - 'ArmISA::TLB::AlignByte', - 'ArmISA::TLB::MustBeOne'], - ['IsStoreConditional']).emit() -}}; -- cgit v1.2.3