VirtualBox

source: vbox/trunk/src/VBox/VMM/include/PDMInline.h@ 100594

Last change on this file since 100594 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: PDMInline.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * PDM - Internal header file containing the inlined functions.
4 */
5
6/*
7 * Copyright (C) 2012-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28#ifndef VMM_INCLUDED_SRC_include_PDMInline_h
29#define VMM_INCLUDED_SRC_include_PDMInline_h
30#ifndef RT_WITHOUT_PRAGMA_ONCE
31# pragma once
32#endif
33
34
35/**
36 * Calculates the next IRQ tag.
37 *
38 * @returns IRQ tag.
39 * @param pVM The cross context VM structure.
40 * @param idTracer The ID of the source device.
41 */
42DECLINLINE(uint32_t) pdmCalcIrqTag(PVM pVM, uint32_t idTracer)
43{
44 uint32_t uTag = (pVM->pdm.s.uIrqTag + 1) & 0x3ff; /* {0..1023} */
45 if (!uTag)
46 uTag++;
47 pVM->pdm.s.uIrqTag = uTag |= (idTracer << 16);
48 return uTag;
49}
50
51#endif /* !VMM_INCLUDED_SRC_include_PDMInline_h */
52
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