Luma3DS-3GX/k11_extension/source/svc/UnmapProcessMemoryEx.c

/*
*   This file is part of Luma3DS
*   Copyright (C) 2016-2020 Aurora Wright, TuxSH
*
*   This program 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
*   (at your option) any later version.
*
*   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
*
*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
*       * Requiring preservation of specified reasonable legal notices or
*         author attributions in that material or in the Appropriate Legal
*         Notices displayed by works containing it.
*       * Prohibiting misrepresentation of the origin of that material,
*         or requiring that modified versions of such material be marked in
*         reasonable ways as different from the original version.
*/

#include "globals.h"
#include "svc/MapProcessMemoryEx.h"

Result UnmapProcessMemoryEx(Handle processHandle, void *dst, u32 size)
{
    if(kernelVersion < SYSTEM_VERSION(2, 37, 0)) // < 6.x
        return UnmapProcessMemory(processHandle, dst, size); // equivalent when size <= 64MB

    KProcessHwInfo *currentHwInfo = hwInfoOfProcess(currentCoreContext->objectContext.currentProcess);

    Result res = KProcessHwInfo__UnmapProcessMemory(currentHwInfo, dst, size >> 12);

    invalidateEntireInstructionCache();
    flushEntireDataCache();

    return res;
}