60e4ad955d
Encapsulate all ruby-related files in a ruby namespace. Change-Id: If642c9751ecefc35b45c5dd69d85e67813cc5224 Issued-on: https://gem5.atlassian.net/browse/GEM5-984 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47307 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
99 lines
3.3 KiB
C++
99 lines
3.3 KiB
C++
/*
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* Copyright (c) 2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEM_RUBY_SYSTEM_DMASEQUENCER_HH__
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#define __MEM_RUBY_SYSTEM_DMASEQUENCER_HH__
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#include <memory>
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#include <ostream>
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#include <unordered_map>
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#include "mem/ruby/common/Address.hh"
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#include "mem/ruby/common/DataBlock.hh"
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#include "mem/ruby/protocol/DMASequencerRequestType.hh"
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#include "mem/ruby/system/RubyPort.hh"
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#include "params/DMASequencer.hh"
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namespace gem5
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{
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namespace ruby
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{
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struct DMARequest
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{
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DMARequest(uint64_t start_paddr, int len, bool write, int bytes_completed,
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int bytes_issued, uint8_t *data, PacketPtr pkt);
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uint64_t start_paddr;
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int len;
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bool write;
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int bytes_completed;
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int bytes_issued;
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uint8_t *data;
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PacketPtr pkt;
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};
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class DMASequencer : public RubyPort
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{
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public:
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typedef DMASequencerParams Params;
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DMASequencer(const Params &);
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void init() override;
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/* external interface */
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RequestStatus makeRequest(PacketPtr pkt) override;
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bool busy() { return m_outstanding_count > 0; }
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int outstandingCount() const override { return m_outstanding_count; }
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bool isDeadlockEventScheduled() const override { return false; }
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void descheduleDeadlockEvent() override {}
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/* SLICC callback */
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void dataCallback(const DataBlock &dblk, const Addr &addr);
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void ackCallback(const Addr &addr);
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void atomicCallback(const DataBlock &dblk, const Addr &addr);
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void recordRequestType(DMASequencerRequestType requestType);
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private:
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void issueNext(const Addr &addr);
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uint64_t m_data_block_mask;
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typedef std::unordered_map<Addr, DMARequest> RequestTable;
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RequestTable m_RequestTable;
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int m_outstanding_count;
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int m_max_outstanding_requests;
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};
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} // namespace ruby
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} // namespace gem5
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#endif // __MEM_RUBY_SYSTEM_DMASEQUENCER_HH__
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