| 1 | /* $Id: mp-r0drv.h 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Multiprocessor, Ring-0 Driver, Internal Header.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #ifndef IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h
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| 28 | #define IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h
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| 29 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 30 | # pragma once
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| 31 | #endif
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| 32 |
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| 33 | #include <iprt/mp.h>
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| 34 |
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| 35 | RT_C_DECLS_BEGIN
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| 36 |
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| 37 | /**
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| 38 | * MP callback
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| 39 | *
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| 40 | * @param idCpu CPU id
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| 41 | * @param pvUser1 The first user argument.
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| 42 | * @param pvUser2 The second user argument.
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| 43 | */
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| 44 | typedef DECLCALLBACKTYPE(void, FNMPWORKER,(RTCPUID idCpu, void *pvUser1, void *pvUser2));
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| 45 | /** Pointer to a FNMPWORKER(). */
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| 46 | typedef FNMPWORKER *PFNMPWORKER;
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| 47 |
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| 48 | /**
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| 49 | * RTMpOn* argument packet used by the host specific callback
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| 50 | * wrapper functions.
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| 51 | */
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| 52 | typedef struct RTMPARGS
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| 53 | {
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| 54 | PFNMPWORKER pfnWorker;
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| 55 | void *pvUser1;
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| 56 | void *pvUser2;
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| 57 | RTCPUID idCpu;
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| 58 | RTCPUID idCpu2;
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| 59 | uint32_t volatile cHits;
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| 60 | #ifdef RT_OS_WINDOWS
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| 61 | /** Turns out that KeFlushQueuedDpcs doesn't necessarily wait till all
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| 62 | * callbacks are done. So, do reference counting to make sure we don't free
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| 63 | * this structure befor all CPUs have completely handled their requests. */
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| 64 | int32_t volatile cRefs;
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| 65 | #endif
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| 66 | #ifdef RT_OS_LINUX
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| 67 | PRTCPUSET pWorkerSet;
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| 68 | #endif
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| 69 | } RTMPARGS;
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| 70 | /** Pointer to a RTMpOn* argument packet. */
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| 71 | typedef RTMPARGS *PRTMPARGS;
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| 72 |
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| 73 | /* Called from initterm-r0drv.cpp: */
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| 74 | DECLHIDDEN(int) rtR0MpNotificationInit(void);
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| 75 | DECLHIDDEN(void) rtR0MpNotificationTerm(void);
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| 76 |
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| 77 | /* The following is only relevant when using mpnotifcation-r0drv.cpp: */
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| 78 | DECLHIDDEN(int) rtR0MpNotificationNativeInit(void);
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| 79 | DECLHIDDEN(void) rtR0MpNotificationNativeTerm(void);
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| 80 | DECLHIDDEN(void) rtMpNotificationDoCallbacks(RTMPEVENT enmEvent, RTCPUID idCpu);
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| 81 |
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| 82 | RT_C_DECLS_END
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| 83 |
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| 84 | #endif /* !IPRT_INCLUDED_SRC_r0drv_mp_r0drv_h */
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| 85 |
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