//----------------------------------------------------------------------------//
//                           GNU GPL OS/K                                     //
//                                                                            //
//  Desc:         Page allocator related functions                            //
//                                                                            //
//                                                                            //
//  Copyright © 2018-2020 The OS/K Team                                       //
//                                                                            //
//  This file is part of OS/K.                                                //
//                                                                            //
//  OS/K is free software: you can redistribute it and/or modify              //
//  it under the terms of the GNU General Public License as published by      //
//  the Free Software Foundation, either version 3 of the License, or         //
//  any later version.                                                        //
//                                                                            //
//  OS/K is distributed in the hope that it will be useful,                   //
//  but WITHOUT ANY WARRANTY//without even the implied warranty of            //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
//  GNU General Public License for more details.                              //
//                                                                            //
//  You should have received a copy of the GNU General Public License         //
//  along with OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
//----------------------------------------------------------------------------//

#ifndef _KERNEL_H
#include <kernel.h>
#endif

#ifndef _MM_PALLOC_H
#define _MM_PALLOC_H

//----------------------------------------------------------------------------//

typedef struct AllocatedPage_t{
    void *phyAddressBegin;
    void *phyAddressEnd;
    ulong id;
    struct AllocatedPage_t *next;
} AllocatedPage_t;

#define CONTIGUOUS true
#define NORMAL false

//----------------------------------------------------------------------------//

ulong MmAllocPageFrameEx(void ***frameListPtr, size_t *pageNumber, size_t size, bool contiguous);
ulong MmAllocPageFrame(size_t size, bool contiguous);
void  MmFreePageFrame(ulong id);

ulong MmGetBusyPageSize(void);
ulong MmGetTotalPageSize(void);

error_t MmMapPageFrame(ulong id, void *virtAddr, ulong flags);
error_t MmUnmapPageFrame(ulong id);

//----------------------------------------------------------------------------//

#endif