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/* $Id: alloc-r0drv-haiku.c $ */
/** @file
* IPRT - Memory Allocation, Ring-0 Driver, Haiku.
*/
/*
* Copyright (C) 2012-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "the-haiku-kernel.h"
#include "internal/iprt.h"
#include <iprt/mem.h>
#include <iprt/log.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/thread.h>
#include "r0drv/alloc-r0drv.h"
/**
* OS specific allocation function.
*/
int rtR0MemAllocEx(size_t cb, uint32_t fFlags, PRTMEMHDR *ppHdr)
{
if (RT_UNLIKELY(fFlags & RTMEMHDR_FLAG_ANY_CTX))
return VERR_NOT_SUPPORTED;
PRTMEMHDR pHdr = (PRTMEMHDR)malloc(cb + sizeof(*pHdr));
if (RT_UNLIKELY(!pHdr))
{
LogRel(("rtR0MemAllocEx(%u, %#x) failed\n",(unsigned)cb + sizeof(*pHdr), fFlags));
return VERR_NO_MEMORY;
}
pHdr->u32Magic = RTMEMHDR_MAGIC;
pHdr->fFlags = fFlags;
pHdr->cb = cb;
pHdr->cbReq = cb;
*ppHdr = pHdr;
return VINF_SUCCESS;
}
/**
* OS specific free function.
*/
void rtR0MemFree(PRTMEMHDR pHdr)
{
pHdr->u32Magic += 1;
free(pHdr);
}
RTR0DECL(void *) RTMemContAlloc(PRTCCPHYS pPhys, size_t cb) RT_NO_THROW_DEF
{
/*
* Validate input.
*/
AssertPtr(pPhys);
Assert(cb > 0);
RT_ASSERT_PREEMPTIBLE();
/*
* Allocate the memory and ensure that the API is still providing
* memory that's always below 4GB.
*/
cb = RT_ALIGN_Z(cb, PAGE_SIZE);
void *pv;
area_id area = create_area("VirtualBox Contig Alloc", &pv, B_ANY_KERNEL_ADDRESS, cb, B_32_BIT_CONTIGUOUS,
B_READ_AREA | B_WRITE_AREA);
if (area >= 0)
{
physical_entry physMap[2];
if (get_memory_map(pv, cb, physMap, 2)>= B_OK)
{
*pPhys = physMap[0].address;
return pv;
}
delete_area(area);
AssertMsgFailed(("Cannot get_memory_map for contig alloc! cb=%u\n",(unsigned)cb));
}
else
AssertMsgFailed(("Cannot create_area for contig alloc! cb=%u error=0x%08lx\n",(unsigned)cb, area));
return NULL;
}
RTR0DECL(void) RTMemContFree(void *pv, size_t cb) RT_NO_THROW_DEF
{
RT_ASSERT_PREEMPTIBLE();
if (pv)
{
Assert(cb > 0);
area_id area = area_for(pv);
if (area >= B_OK)
delete_area(area);
else
AssertMsgFailed(("Cannot find area to delete! cb=%u error=0x%08lx\n",(unsigned)cb, area));
}
}
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