VirtualBox

source: vbox/trunk/src/VBox/VMM/include/PDMInline.h@ 87815

Last change on this file since 87815 was 82968, checked in by vboxsync, 5 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.2 KB
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1/* $Id: PDMInline.h 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * PDM - Internal header file containing the inlined functions.
4 */
5
6/*
7 * Copyright (C) 2012-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef VMM_INCLUDED_SRC_include_PDMInline_h
19#define VMM_INCLUDED_SRC_include_PDMInline_h
20#ifndef RT_WITHOUT_PRAGMA_ONCE
21# pragma once
22#endif
23
24
25/**
26 * Calculates the next IRQ tag.
27 *
28 * @returns IRQ tag.
29 * @param pVM The cross context VM structure.
30 * @param idTracer The ID of the source device.
31 */
32DECLINLINE(uint32_t) pdmCalcIrqTag(PVM pVM, uint32_t idTracer)
33{
34 uint32_t uTag = (pVM->pdm.s.uIrqTag + 1) & 0x3ff; /* {0..1023} */
35 if (!uTag)
36 uTag++;
37 pVM->pdm.s.uIrqTag = uTag |= (idTracer << 16);
38 return uTag;
39}
40
41#endif /* !VMM_INCLUDED_SRC_include_PDMInline_h */
42
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