e4537dfbba
The System object supports multiple memory pools but there is currently no way to specify which pool to allocate from in SE mode. This patch adds a optional poolID argument to the allocation functions. Change-Id: I1c732f28905f3b3875adee5f2b0d9abb39a6c5d1 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/42215 Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com> Maintainer: Matt Sinclair <mattdsinclair@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2011-2021 Advanced Micro Devices, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* For use for simulation and test purposes only
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. 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.
|
|
*
|
|
* 3. Neither the name of the copyright holder 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 HOLDER 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.
|
|
*/
|
|
|
|
#ifndef __MEM_POOL_HH__
|
|
#define __MEM_POOL_HH__
|
|
|
|
#include "base/types.hh"
|
|
|
|
class System;
|
|
|
|
/** Class for handling allocation of physical pages in SE mode. */
|
|
class MemPool
|
|
{
|
|
private:
|
|
System *sys;
|
|
|
|
/** Page number to free memory. */
|
|
Counter freePageNum;
|
|
|
|
/** The size of the pool, in number of pages. */
|
|
Counter _totalPages;
|
|
|
|
public:
|
|
MemPool(System *system, Addr ptr, Addr limit);
|
|
|
|
Counter freePage() const;
|
|
void setFreePage(Counter value);
|
|
Addr freePageAddr() const;
|
|
Counter totalPages() const;
|
|
|
|
Counter allocatedPages() const;
|
|
Counter freePages() const;
|
|
|
|
Addr allocatedBytes() const;
|
|
Addr freeBytes() const;
|
|
Addr totalBytes() const;
|
|
|
|
Addr allocate(Addr npages);
|
|
};
|
|
|
|
#endif // __MEM_POOL_HH__
|