r0drv/solaris/mp-r0drv-solaris.cpp

	mp-r0drv-solaris.cpp revision 5e91fc5e5ea9cccb7a40636f73253d489fbe340b
/* $Id$ */
/** @file
 * innotek Portable Runtime - Multiprocessor, Ring-0 Driver, Solaris.
 */

/*
 * Copyright (C) 2008 innotek GmbH
 *
 * 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-solaris-kernel.h"

#include <iprt/mp.h>
#include <iprt/err.h>
#include <iprt/asm.h>
#include "r0drv/mp-r0drv.h"


RTDECL(RTCPUID) RTMpCpuId(void)
{
    return ???;
}


/**
 * Wrapper between the native solaris per-cpu callback and PFNRTWORKER
 * for the RTMpOnAll API.
 *
 * @param   u64         Pointer to the RTMPARGS package.
 * @param   u64Ignored  Ignored.
 */
static void rtmpOnAllSolarisWrapper(uint64_t u64, uint64_t u64Ignored)
{
    PRTMPARGS pArgs = (PRTMPARGS)(uintptr_t)u64;
    pArgs->pfnWorker(RTMpCpuId(), pArgs->pvUser1, pArgs->pvUser2);
    NOREF(u64Ignored);
}


RTDECL(int) RTMpOnAll(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)
{
    RTMPARGS Args;
    Args.pfnWorker = pfnWorker;
    Args.pvUser1 = pvUser1;
    Args.pvUser2 = pvUser2;
    Args.idCpu = NIL_RTCPUID;
    Args.cHits = 0;
    xt_all(rtmpOnAllSolarisWrapper, (uintptr_t)&Args, 0);
    return VINF_SUCCESS;
}


/**
 * Wrapper between the native solaris per-cpu callback and PFNRTWORKER
 * for the RTMpOnOthers API.
 *
 * @param   u64         Pointer to the RTMPARGS package.
 * @param   u64Ignored  Ignored.
 */
static void rtmpOnOthersSolarisWrapper(uint64_t u64, uint64_t u64Ignored)
{
    PRTMPARGS pArgs = (PRTMPARGS)(uintptr_t)u64;
    RTCPUID idCpu = RTMpCpuId();
    if (idCpu != pArgs->idCpu)
        pArgs->pfnWorker(RTMpCpuId(), pArgs->pvUser1, pArgs->pvUser2);
    NOREF(u64Ignored);
}


RTDECL(int) RTMpOnOthers(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)
{
    int rc;
    RTMPARGS Args;
    Args.pfnWorker = pfnWorker;
    Args.pvUser1 = pvUser1;
    Args.pvUser2 = pvUser2;
    Args.idCpu = NIL_RTCPUID;
    Args.cHits = 0;
    xt_all(rtmpOnOthersSolarisWrapper, (uintptr_t)&Args, 0);
    return VINF_SUCCESS;
}


/**
 * Wrapper between the native solaris per-cpu callback and PFNRTWORKER
 * for the RTMpOnSpecific API.
 *
 * @param   pvArg   Pointer to the RTMPARGS package.
 */
static void rtmpOnSpecificSolarisWrapper(void *pvArg)
{
    PRTMPARGS pArgs = (PRTMPARGS)pvArg;
    Assert(pArgs->idCpu == RTMpCpuId());
    pArgs->pfnWorker(idCpu, pArgs->pvUser1, pArgs->pvUser2);
    ASMAtomicIncU32(&pArgs->cHits);
}


RTDECL(int) RTMpOnSpecific(RTCPUID idCpu, PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2)
{
    int rc;
    RTMPARGS Args;
    Args.pfnWorker = pfnWorker;
    Args.pvUser1 = pvUser1;
    Args.pvUser2 = pvUser2;
    Args.idCpu = idCpu;
    Args.cHits = 0;
    xt_one(idCpu, rtmpOnSpecificSolarisWrapper, (uintptr_t)&Args, 0);
    return Args.cHits == 1
         ? VINF_SUCCESS
         : VERR_CPU_NOT_FOUND;
}