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Diffstat (limited to 'src/cpu/inorder/resources/mult_div_unit.hh')
-rw-r--r-- | src/cpu/inorder/resources/mult_div_unit.hh | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/src/cpu/inorder/resources/mult_div_unit.hh b/src/cpu/inorder/resources/mult_div_unit.hh deleted file mode 100644 index d855dbb9d..000000000 --- a/src/cpu/inorder/resources/mult_div_unit.hh +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Copyright (c) 2007 MIPS Technologies, Inc. - * All rights reserved. - * - * 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: Korey Sewell - * - */ - -#ifndef __CPU_INORDER_MULT_DIV_UNIT_HH__ -#define __CPU_INORDER_MULT_DIV_UNIT_HH__ - -#include <list> -#include <string> -#include <vector> - -#include "cpu/inorder/first_stage.hh" -#include "cpu/inorder/inorder_dyn_inst.hh" -#include "cpu/inorder/resource.hh" -#include "cpu/func_unit.hh" -#include "cpu/op_class.hh" - -class MDUEvent; - -class MultDivUnit : public Resource { - public: - typedef ThePipeline::DynInstPtr DynInstPtr; - - enum Command { - StartMultDiv, - EndMultDiv, - MultDiv - }; - - public: - MultDivUnit(std::string res_name, int res_id, int res_width, - Cycles res_latency, InOrderCPU *_cpu, - ThePipeline::Params *params); - - public: - /** Override default Resource getSlot(). Will only getSlot if - * valid mult/div sequence is being maintained - */ - int getSlot(DynInstPtr inst); - - void init(); - - /** Get Operand Size For A Division Operation */ - int getDivOpSize(DynInstPtr inst); - - /** Override default Resource execute */ - void execute(int slot_num); - - void exeMulDiv(int slot_num); - - /** Register extra resource stats */ - void regStats(); - - void requestAgain(DynInstPtr inst, bool &try_request); - - void squash(DynInstPtr inst, int stage_num, InstSeqNum squash_seq_num, - ThreadID tid); - - protected: - /** Latency & Repeat Rate for Multiply Insts */ - unsigned multRepeatRate; - Cycles multLatency; - - /** Latency & Repeat Rate for 8-bit Divide Insts */ - unsigned div8RepeatRate; - Cycles div8Latency; - - /** Latency & Repeat Rate for 16-bit Divide Insts */ - unsigned div16RepeatRate; - Cycles div16Latency; - - /** Latency & Repeat Rate for 24-bit Divide Insts */ - unsigned div24RepeatRate; - Cycles div24Latency; - - /** Latency & Repeat Rate for 32-bit Divide Insts */ - unsigned div32RepeatRate; - Cycles div32Latency; - - /** Last cycle that MDU was used */ - Tick lastMDUCycle; - - /** Last type of instruction MDU started processing */ - OpClass lastOpType; - - /** Last Division Operand of instruction MDU was processing */ - uint32_t lastDivSize; - - /** Last instruction name the MDU used */ - std::string lastInstName; - - /** Number of Multiplies */ - Stats::Scalar multiplies; - - /** Number of Divides */ - Stats::Scalar divides; - - MDUEvent *mduEvent; -}; - -class MDUEvent : public ResourceEvent -{ - public: - MDUEvent(); - ~MDUEvent() { } - - - void process(); -}; - - -#endif //__CPU_INORDER_MULT_DIV_UNIT_HH__ |