9313294efe
Remove the line "For use for simulation and test purposes only" in files were AMD is the only copyright holder listed in the header. This happens to be the case for all files where this line exists, removing it completely from gem5. Change-Id: I623f266b002f564301b28774f49081099cfc60fd Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/53943 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
/*
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* Copyright (c) 2011-2021 Advanced Micro Devices, Inc.
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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 met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEM_POOL_HH__
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#define __MEM_POOL_HH__
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#include <vector>
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#include "base/addr_range.hh"
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#include "base/types.hh"
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#include "sim/serialize.hh"
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namespace gem5
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{
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/** Class for handling allocation of physical pages in SE mode. */
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class MemPool : public Serializable
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{
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private:
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Addr pageShift = 0;
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/** Start page of pool. */
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Counter startPageNum = 0;
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/** Page number of free memory. */
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Counter freePageNum = 0;
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/** The size of the pool, in number of pages. */
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Counter _totalPages = 0;
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MemPool() {}
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friend class MemPools;
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public:
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MemPool(Addr page_shift, Addr ptr, Addr limit);
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Counter startPage() const;
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Counter freePage() const;
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void setFreePage(Counter value);
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Addr freePageAddr() const;
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Counter totalPages() const;
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Counter allocatedPages() const;
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Counter freePages() const;
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Addr startAddr() const;
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Addr allocatedBytes() const;
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Addr freeBytes() const;
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Addr totalBytes() const;
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Addr allocate(Addr npages);
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void serialize(CheckpointOut &cp) const override;
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void unserialize(CheckpointIn &cp) override;
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};
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class MemPools : public Serializable
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{
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private:
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Addr pageShift;
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std::vector<MemPool> pools;
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public:
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MemPools(Addr page_shift) : pageShift(page_shift) {}
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void populate(const AddrRangeList &memories);
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/// Allocate npages contiguous unused physical pages.
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/// @return Starting address of first page
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Addr allocPhysPages(int npages, int pool_id=0);
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/** Amount of physical memory that exists in a pool. */
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Addr memSize(int pool_id=0) const;
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/** Amount of physical memory that is still free in a pool. */
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Addr freeMemSize(int pool_id=0) const;
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void serialize(CheckpointOut &cp) const override;
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void unserialize(CheckpointIn &cp) override;
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};
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} // namespace gem5
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#endif // __MEM_POOL_HH__
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